Index funds must buy Chime on Nov. 18 as DST Global's filings show $433 million of sales since Aug. 19

A utility merger hands Chime a midcap seat

S&P Dow Jones Indices announced after Friday's close that Chime▲+5.03% — Chime, up 5.03 percent today Financial (NASDAQ: CHYM), the consumer fintech serving 10.9 million members, joins the S&P MidCap 400 before the open on Wednesday, November 18 ¹⁴. The shares rose 5.03 percent Friday on the news ¹⁴.

The slot opened because Black Hills Corp. (NYSE: BKH) completed its acquisition of NorthWestern Energy Group (NASDAQ: NWE); the combined utility, renamed Bright Horizon Energy Corp. (NYSE: HZN), keeps Black Hills' seat and vacates NorthWestern's. The slot is mechanical, not earned: Chime is filling a vacancy left by a merger, per S&P's own release↗ ¹⁵.

Passive money has to buy, and a seller has been selling

Index funds that track the S&P MidCap 400 must own the new constituent at Wednesday's open; that is how the benchmark works ¹. On the other side of the trade sits DST Global, the venture firm founded by Yuri Milner that was one of Chime's two biggest institutional owners at the June 2025 IPO ($27 a share, about $700 million raised) ³⁵.

Its fund chain filed an amended Schedule 13G on Friday evening, November 13↗, reporting 36,018,593 Class A shares, 10.2 percent of the class, as of September 30, counted against 353,422,420 Class A shares outstanding as of November 2 ².

Eleven receipts, then silence

The Form 4 record since August 19 shows eleven dated sales totaling about $433 million, from $145.5 million on August 19 to $41.1 million on November 6, when seven DST funds sold 1,319,027 shares at a blended $31.13 ³. After that sale the seven funds held 34,688,826 shares, about 9.8 percent of the November 2 share count, worth about $1.13 billion at Monday's $32.53 close ³.

Just under the 10 percent line, the filing duty that produced every one of those receipts lapses; from here the stake shows up only in quarterly 13Fs ³.

A good quarter, an expensive stock

The selling runs against a clean print: third-quarter revenue up 32 percent to $718 million, net income of $44 million, a third straight GAAP-profitable quarter, and guidance raised to $2.792 to $2.802 billion for the year ³⁴. Insiders overall sold $620 million in 90 days into a stock near 130 times earnings ³⁴. Nothing in any filing says why DST is selling ³.

One mechanical bid, then no more receipts

The forced index bid lands Wednesday and the demand is real, but it is one-time, mechanical demand. The investor who buys the inclusion pop may be buying from a holder whose next sales leave no receipt. February's 13F is the next countable reading ³.