*407In this purported class action, defendants - a collection of entities from fifteen major banks and two major brokerage firms - are accused of conspiring to manipulate the Bank Bill Swap Reference Rate ("BBSW"), a rate set at the relevant times in Australia but allegedly used widely in the United States and elsewhere in the world as a benchmark for the pricing of various financial derivatives among other purposes. Plaintiffs are one individual and four entities, each of whom or which entered into financial derivatives that allegedly *408were priced, benchmarked, and/or settled based on BBSW.
Defendants move pursuant to Rules 12(b)(1) and 12(b)(6) of the Federal Rules of Civil Procedure to dismiss each of the claims brought by certain of the plaintiffs. For the reasons discussed below, the motion is granted in all respects.
Background
Plaintiffs filed this action on August 16, 2016, and the operative amended complaint was filed on December 19, 2016. It alleges that defendants used various means systematically to manipulate BBSW and seeks damages for alleged violations of the Sherman Act, the Commodity Exchange Act, and the Racketeer Influenced and Corrupt Organizations Act and claims of unjust enrichment and breach of the implied covenant of good faith and fair dealing. The Court dismissed certain of those claims in an opinion filed of even date.
All defendants1 now move to dismiss each of the claims asserted by Sonterra Capital Master Fund, Ltd. ("Sonterra"), FrontPoint Financial Services Fund, L.P. ("FrontPoint Financial Services"), FrontPoint Asian Event Driven Fund, L.P. ("FrontPoint Event Driven"), and FrontPoint Financial Horizons Fund, L.P. ("FrontPoint Horizons" and, together with FrontPoint Financial Services and FrontPoint Event Driven, the "FrontPoint Plaintiffs") because, defendants allege, these plaintiffs no longer exist and therefore lack standing and legal capacity to sue.2
There is no dispute that Sonterra and the FrontPoint Plaintiffs were dissolved before the complaint in this case was filed.3 Plaintiffs maintain that an entity called Fund Liquidation Holdings, LLC ("FLH"), a Delaware LLC, "is (and has always been) the one acting in this case and, as an assignee, unquestionably has the right to enforce the claims that it received."4 They assert that Sonterra and the FrontPoint Plaintiffs granted FLH the requisite authority by virtue of two asset purchase agreements, one for Sonterra (the "Sonterra APA") and one for the FrontPoint Plaintiffs (the "FrontPoint APA").
Defendants argue that Sonterra and the FrontPoint Plaintiffs lack any personal stake in the outcome of this litigation and therefore lack standing.5
Plaintiffs do not argue that Sonterra or the FrontPoint Plaintiffs have standing in this case or, in any event, capacity to sue. Nor do they argue that Sonterra or the FrontPoint Plaintiffs would have been able to bring this suit without the assistance of FLH. Plaintiffs instead oppose this motion on the grounds that FLH (1) had standing *409because Sonterra and the FrontPoint Plaintiffs successfully assigned their claims to FLH, and (2) properly brought this lawsuit in Sonterra's and the FrontPoint Plaintiffs' names. In the alternative, plaintiffs argue that the appropriate remedy would be to permit FLH to be substituted into this action pursuant to Rule 17(a)(3) of the Federal Rules of Civil Procedure.
Discussion
Standing and Capacity to Sue
Assuming arguendo that Sonterra and the FrontPoint Plaintiffs completely assigned the claims brought in this case to FLH, they do not have standing to sue because they no longer have an interest in the litigation.6
Relying on Valdin Investments Corporation v. Oxbridge Capital Management, LLC ,7 defendants ask the Court to go one step further and hold that the mere assertion by these plaintiffs that they assigned their claims to FLH deprives them of standing. In Valdin , the Second Circuit held in an unpublished opinion that a complaint should have been dismissed because the plaintiff previously had assigned the claims it asserted against the defendant to a third party.8 The Circuit there noted that it "assume[d]" that the assignment had been effective in part because plaintiff, "as the party invoking federal jurisdiction, [bore] the burden of establishing standing" and the court chose not to "question [the plaintiff's] assertions insofar as they demonstrate[d] the absence of standing."9 This Court need not reach defendants' argument, however, because even if Sonterra and the FrontPoint Plaintiffs had standing, they would still lack capacity to sue by virtue of having dissolved.
Rule 17(b) provides that capacity to sue is determined (1) "for a corporation, by the law under which it was organized;" and (2) "for all other parties, by the law of the state where the court is located."10
The Court first considers Sonterra, an exempted company incorporated under Part VII of the Companies Law of the Cayman Islands.11 There is no binding precedent to guide the Court in determining how it should treat a Cayman Islands exempted company. Defendants urge the *410Court to treat Sonterra as a corporation for purposes of Rule 17(b) and therefore apply the law of the Cayman Islands12 under which the dissolved company would have no capacity to sue.13 With no opposition from plaintiffs, the Court is persuaded by defendants' analysis.
As to the FrontPoint Plaintiffs, the Court looks to New York law, which provides that "a partnership formed under the laws of any jurisdiction, including any foreign country, other than the laws of this state and having as partners one or more general partners and one or more limited partners" is deemed a "foreign limited partnership."14 New York law provides also that a foreign limited partnership's capacity to sue is determined by reference to the laws of the jurisdiction under which the foreign limited partnership is organized.15 Accordingly, for FrontPoint Financial Services and FrontPoint Event Driven, the Court looks to the law of the Cayman Islands, and for FrontPoint Horizons, the Court looks to Delaware law. Under each jurisdiction, these dissolved entities lack capacity to sue.16
Although plaintiffs do not dispute that Sonterra and the FrontPoint Plaintiffs lacked capacity to sue, they do argue that defendants waived this defense by failing to raise it at the outset of the litigation.17
*411Although plaintiffs' argument is not wholly frivolous, the cases upon which they rely are inapposite. For example, in Pressman v. Estate of Steinvorth ,18 the court held that the capacity to sue defense had been waived where a defendant had not explicitly raised the issue in its answer.19 The defendant there had stated in its answer only that the plaintiff lacked legal standing to sue. It did not meet the pleading standards set forth in Rule 9(a) of the Federal Rules of Civil Procedure, which then required, and still require, a more particular showing when asserting a party's lack of capacity to sue or be sued.20 The court therefore held that "[e]ven accepting [the defendant's] assertion that standing and capacity are in effect the same due to their often blurred distinctions among litigants and the courts," the defendant "in effect waived the capacity defense by failing to be more explicit in his answer."21
It is true that, as was the case in Pressman , a capacity to sue defense may be waived if it is not raised in a party's initial responsive pleading to a claim.22 However, "[w]aiver of an affirmative defense 'may not be proper where the defense is raised at the first pragmatically possible time and applying it at that time would not unfairly prejudice the opposing party.' "23
In this case, the original complaint described each plaintiff as currently in business at the time of filing.24 The amended complaint then changed the descriptions of Sonterra and the FrontPoint Plaintiffs to use the past tense with respect to their business operations.25 Defendants moved to dismiss for lack of subject-matter jurisdiction and failure to state a *412claim on February 24, 2017,26 but subsequently sought leave to file a supplemental brief addressing these plaintiffs' lack of capacity to sue on October 19, 2017.27 In that letter, defendants asserted that they had "recently learned" that Sonterra and the FrontPoint Plaintiffs had been dissolved before the litigation was initiated.28
In this case, unlike in Pressman , defendants raised their capacity to sue argument in a Rule 12 motion to dismiss before filing an answer to the amended complaint. Plaintiffs nonetheless argue that defendants waived the argument because the facts of Sonterra's and the FrontPoint Plaintiffs' dissolutions had been public for years by the time this motion was filed. They argue also that certain defendants had actual knowledge of plaintiffs' dissolution.29 Defendants argue in response that plaintiffs owed a duty of candor and that the pleadings were misleading.
It is true that defendants offer no reason for why they did not raise this argument in their initial motion to dismiss. Indeed, ten months went by between the filing of the amended complaint and defendants' letter to the court seeking leave to file a supplemental brief. On the other hand, the case is still in its initial stages and it seems that even plaintiffs are willing to admit that defendants would prevail were the court to consider the motion on the merits. Accordingly, any resulting prejudice to plaintiffs would not be "unfair" because Sonterra and the FrontPoint Plaintiffs in fact do not exist and lack capacity to sue.
On balance, the Court concludes that defendants did not waive the argument that Sonterra and the FrontPoint Plaintiffs lack capacity to sue.
FLH Suing in Plaintiffs' Names
The Court now addresses plaintiffs' argument that FLH properly brought this action in Sonterra's and the FrontPoint Plaintiffs' names.
Rule 17(a)(1) of the Federal Rules of Civil Procedure clearly instructs that if FLH indeed was the "real party in interest," then it should have brought this lawsuit in its own name.30 Plaintiffs argue that the respective APAs with FLH "included valid and irrevocable powers of attorney, giving FLH the authority to sue for the claims assigned in FrontPoint's and Sonterra's names."31 Although in the ordinary *413course, and depending on the specific powers granted, a grant of a power of attorney may entitle the holder to bring a lawsuit in the name of the grantor,32 the power of attorney generally terminates when the grantor ceases to exist.33
Plaintiffs here argue that the powers of attorney granted to FLH survived the dissolutions of Sonterra and the FrontPoint Plaintiffs because such powers were granted with interests in the claims asserted in this case.34 They cite to the language in the APAs, which is identical in all material respects:
"Each Seller hereby designates and appoints each of (1) Buyer and (2) Buyer's designated agents as Seller's attorney-in-fact, each with the right, power and authority to take any of the following actions on behalf of such Seller, in such Seller's name , place and stead, with respect to any of the Claims: (i) the right, power and authority to grant releases from such Seller with respect to any of the Claims in favor of any ... of the Defendants or Potential Defendants now or hereafter named in any of the Cases, whether pending or threatened, known, unknown or unknowable or settled or unsettled; (ii) the right, power and authority to execute and submit proofs of Claim, filings and releases relating to any of the Claims and other documents relating thereto; and (iii) the right, power and authority to execute and submit any and all other documents necessary, appropriate or helpful to enable Buyer to maximize its recovery on the Assets. The foregoing power of attorney is coupled with an interest and may not be terminated or revoked by such Seller at any time ."35
Assuming without deciding that the list of actions in the power of attorney provision above encompassed FLH's right to bring this lawsuit, the Court considers whether FLH retained the right to bring this lawsuit in Sonterra's and the FrontPoint Plaintiffs' names after their respective dissolutions.
In the Court's view, plaintiffs cannot have it both ways. In Hunt v. Rousmanier's Administrators ,36 the Supreme Court held that there was one exception to the general rule that a power of attorney could not survive the death of the grantor - that is, "[i]f a power be coupled with an 'interest,' it survives the person giving it, and may be executed after his death."37 The *414Court further stated that the "interest" with which the power of attorney must be coupled "must be an interest in the thing itself. In other words, the power must be engrafted on an estate in the thing."38
But if the holder of a power of attorney holds also an interest in "the thing itself," which in this case would be the assignment of the claims asserted in the litigation, the holder of such power and interest then would become the "real party in interest" for purposes of Rule 17(a).39
This conclusion follows naturally from the case law in the Second Circuit, which holds that "a mere power-of-attorney ... does not confer standing to sue in the holder's own right" and that "the minimum requirement for an injury-in-fact is that the plaintiff have legal title to, or a proprietary interest in, the claim."40 The Supreme Court's reasoning in Hunt also supports the view that, assuming arguendo the effectiveness of the assignments, FLH was the "real party in interest" in this case and therefore should have brought the litigation in its own name:
"The interest or title in the thing being vested in the person who gives the power, remains in him, unless it be conveyed with the power, and can pass out of him only by a regular act in his own name. The act of the substitute, therefore, which, in such a case, is the act of the principal, to be legally effectual, must be in his name, must be such an act as the principal himself would be capable of performing, and which would be valid if performed by him . Such a power necessarily ceases with the life of the person making it. But if the interest, or estate, passes with the power, and vests in the person by whom the power is to be exercised, such person acts in his own name . The estate, being in him, passes from him by a conveyance in his own name. He is no longer a substitute, acting in the place and name of another, but is a principal acting in his own name, in pursuance of powers which limit his estate. The legal reason which limits a power to the life of the person giving it, exists no longer, and the rule ceases with the reason on which it is founded. The intention of the instrument may be effected without violating any legal principle.41
The Court concludes, even assuming that FLH in fact was assigned the claims asserted in this case and was entitled to pursue them after the respective dissolutions of Sonterra and the FrontPoint Plaintiffs, that it was improper for FLH to file the case in their names.
Availability of Rule 17(a)(3) Substitution
Plaintiffs next argue that even if FLH improperly brought this action in Sonterra's and the FrontPoint Plaintiffs' names, substitution of FLH into the action under Rule 17(a)(3), rather than dismissal, is the appropriate remedy. Defendants advance four arguments for why the claims brought by Sonterra and the FrontPoint Plaintiffs should be dismissed without permitting them to substitute FLH as the real party *415in interest. First, defendants argue that "[p]laintiffs have not moved for substitution and the Court should not grant Plaintiffs relief for which they have not moved."42 Second, they argue that substitution would be futile because the assignments were ineffective as to FLH. Third, they assert that Rule 17 substitution cannot be used to cure a standing defect. And fourth, they contend that Rule 17 does not permit substitution in this case.
No Formal Motion
Although plaintiffs have not moved for substitution, the Court declines to dismiss Sonterra and the FrontPoint Plaintiffs' claims on this ground. Plaintiffs have requested substitution in their brief opposing defendants' motion. Requiring plaintiffs to reassert presumably identical arguments in a formal motion would be an inefficient use of the Court's and the parties' resources.
Futility
Ordinarily, it would be for the Court to determine the effectiveness of an assignment of claims.43 "In general, claims or choses in action may be freely transferred or assigned to others."44 In order to make an assignment valid, however, "the owner must manifest 'an intention to make the assignee the owner of [the] claim.' "45 In this case, however, the Court need not reach the question because, as discussed below, the Court concludes for other reasons that Rule 17 substitution is not available to plaintiffs.
Use of Rule 17 to Cure Standing Flaw
Defendants next argue that substitution under Rule 17(a)(3)"is improper in cases where, as here, all of plaintiffs' asserted claims were allegedly assigned before initiation of the lawsuit" because Rule 17(a)(3) can remedy a defect in standing only if the plaintiff clearly had standing on another claim that it brought.46 The Court is not persuaded.
In Cortlandt Street Recovery Corporation v. Hellas Telecommunications, S.à.r.l. ,47 the Second Circuit considered a plaintiff that claimed it had standing to sue by virtue of an assignment. The Circuit concluded that the plaintiff had not carried its burden of showing a valid assignment of claim and then considered whether the plaintiff should have been given an opportunity to cure the deficiency under Rule 17(a)(3).48 The Circuit noted that because the assignment to the plaintiff was insufficient with respect to each claim asserted in the litigation, the plaintiff had no standing to pursue any of the claims against the defendants.49 The district court there had reasoned that "absent a complete assignment of the only claims on which the lawsuit was based, there was no valid lawsuit pending before the district court in which to permit an amended complaint,"50 but the Circuit nonetheless declined to reach the *416question of whether a jurisdictional defect in those circumstances could be cured by Rule 17(a)(3).51
Subsequent case law has taken varying approaches to the question.52 Most recently, in Klein ex rel. Qlik Technologies, Inc. v. Qlik Technologies, Inc. ,53 the Second Circuit considered a plaintiff who initially had brought a shareholder derivative suit on behalf of a corporation. After the complaint was filed, the corporation was bought out in an all-cash merger, and the plaintiff consequently lost her interest in the case. The Second Circuit concluded that this was an issue of mootness, rather than standing, and permitted amendment under Rule 17(a)(3).54 The Circuit noted in dicta , however, that substitution would have been unavailable to the plaintiff had the issue been one of standing. It stated:
"[I]n the absence of a plaintiff with standing ... there [is] ... no lawsuit pending for the real party in interest to ratify, join, or be substituted into under Rule 17(a)(3) or otherwise. Whether the real party in interest made a mistake does not even enter into consideration."55
Nonetheless, this case arguably can be distinguished from Qlik because there is another named plaintiff in this case, Dennis, who has retained standing to sue. Accordingly, even if the Court were to dismiss the complaint as to Sonterra and the FrontPoint Plaintiffs, FLH nonetheless could join the existing lawsuit brought by Dennis, assuming arguendo that the assignments were valid.56 For this reason, the fact that Sonterra and the FrontPoint Plaintiffs lack standing over any claims would not necessarily foreclose amendment pursuant to Rule 17(a)(3). But the Court need not reach the question because the requirements of Rule 17 do not permit substitution in this case.
Rule 17 Requirements
The Second Circuit has said that "[a] Rule 17(a) substitution of plaintiffs should be liberally allowed when the change is merely formal and in no way alters the original complaint's factual allegations as to the events or the participants."57 "Even if a proposed substitution meets these requirements, it should be denied if it is being proposed 'in bad faith *417or in an effort to deceive or prejudice the defendants.' "58
Under the standard set forth in Cortlandt Street Recovery , substitution here would require more than a "merely formal" alteration of the complaint.59 In Cortlandt , the plaintiff whose assignment the Circuit had concluded was ineffective requested an opportunity to cure its standing problem by obtaining a new assignment vesting it with sufficient title to maintain the lawsuit.60 The Circuit rejected this request, stating:
"Cortlandt's First Amended Complaint alleges that it was assigned 'full rights under the assignments to collect principal and interest due and to pursue all remedies.' Pl.'s First Am. Compl. ¶ 12 (J.A. 60). In order to have standing, however, Cortlandt would have to allege that it was assigned title to the claims, not merely a power of attorney. A new assignment would 'alter[ ] the original complaint's factual allegations as to the events or the participants,' Advanced Magnetics , 106 F.3d at 20, because the language of the new complaint, to cure the standing bar, would necessarily reflect the contents of the new assignment .
"We have ordinarily allowed amendments under Rule 17 only 'when a mistake has been made as to the person entitled to bring suit and such substitution will not alter the substance of the action.' Park B. Smith, Inc. [v. CHF Industries Inc. ], 811 F.Supp.2d [766] at 773 [ (S.D.N.Y. 2011) ]. Cortlandt's legal claims might remain unaltered if a new assignment were substituted for the old one, but the factual allegations supporting them would not . Unlike a substitution, such as the one requested in Advanced Magnetics ..., pleading the existence of a new and substantively different assignment would require more than a 'merely formal' alteration of the complaint. See Advanced Magnetics , 106 F.3d at 20. Such an attempt to employ Rule 17(a)(3) to cure the standing problem here would thus be fated to fail."61
In this case, were FLH to join the lawsuit, the amended complaint would "necessarily reflect" the contents of the relevant assignments in order to establish FLH's standing. Plaintiffs argue that this would entail "only a change in the caption and a short description of the assignments and powers of attorney in the body of the Complaint" and that the "claims and allegations would remain unchanged."62 Unfortunately for plaintiffs, that is not the standard established by Cortlandt , and even the "short description" that plaintiffs describe would be impermissible.63
*418Conclusion
Defendants' motion is granted. The claims brought by Sonterra Capital Master Fund, Ltd., FrontPoint Financial Services Fund, L.P., FrontPoint Asian Event Driven Fund, L.P., and FrontPoint Financial Horizons Fund, L.P. are dismissed as to all defendants except JPMorgan Chase & Co. and JPMorgan Chase Bank, N.A.
SO ORDERED.