2026 Membership Book FINAL

Case: 25-7516, 01/23/2026, DktEntry: 33.1, Page 50 of 110

Under Kalshi’s interpretation, part (ii) would lose the common thread

and swallow the rest of the definition. If part (ii) reaches contracts “on an-

ything that happens or could happen,” 1-ER-13, then the remaining parts

are left with nothing to do, 1-ER-20. This Court should not adopt a reading

that makes most of the “swaps” definition “superfluous, void, or insignifi-

cant.” GCIU-Emp. Ret. Fund v. MNG Enters., Inc. , 51 F.4th 1092, 1097 (9th

Cir. 2022).

Kalshi responds (Br. 53) that its reading simply creates “overlap.” But

its interpretation of part (ii) does not merely overlap with the other parts—

it makes them all superfluous. Kalshi does not identify any swap that would

not come within its reading of part (ii). Kalshi argues (Br. 52) that part (ii)

should be read broadly because part (iv) includes agreements that “become[]

commonly known to the trade as swap,” 7 U.S.C. § 1a(47)(A)(iv), and be-

cause Congress excluded certain contracts from the definition of swap, see

id. § 1a(47)(B). Neither makes sense. If part (ii) is read broadly to cover

any possible event contract, then part (iv) is meaningless, and Section

1a(47)(B) does not suggest or imply that broad construction of part (ii).

Kalshi asserts (Br. 51-52) that because the Special Rule allows the

CFTC to prohibit contracts involving “gaming,” those contracts must be

“swaps” under the CEA. That is wrong, because the Special Rule is not

limited to “swaps”; it applies to “agreements, contracts, transactions, or

swaps.” 7 U.S.C. § 7a-2(c)(5)(C)(i). Further, the Special Rule is a backstop

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