Millennium Management2026-Q2
This is Millennium Management LLC's 13F filing for the second quarter of 2026, covering positions as of June 30, 2026.
| Ticker | Action | Value Change |
|---|---|---|
| SPY | Add | +$7.18B |
| MU | Trim | +$3.39B (shares cut; value rose on price gains, not a buy) |
| 84615Q103 | New Buy | a notable change |
| CRH | Trim | -$2.78B |
| SPYM | Sold Out | a notable change |
Q: Did Millennium Management buy or sell SPY in Q2 2026?
Millennium Management added to its SPY position in Q2 2026, growing the holding from $3.21B to $10.39B. The portfolio weight rose from 1.33% to 3.76%, making it one of the largest position increases in the entire filing.
Q: Why did Millennium trim MU but the position value still went up?
Millennium reduced its MU share count in Q2 2026, but the dollar value of the position rose because the stock price gained more than the trimmed shares were worth — this was real selling, not a buy. The position moved from $1.61B to $5.00B, with portfolio weight shifting from 0.67% to 1.81%.
Q: What new position did Millennium start in Q2 2026?
Millennium initiated a new position in security 84615Q103 during Q2 2026, establishing a holding valued at $3.20B with a portfolio weight of 1.16%. The position had no prior value, confirming it as a fresh acquisition rather than an addition to an existing stake.
Q: Did Millennium exit any positions completely in Q2 2026?
Millennium Management fully exited SPYM and LITE 0.5 06-15-28 in Q2 2026, selling out positions previously valued at $1.65B and $841.9M respectively. Both holdings dropped to zero portfolio weight from 0.69% and 0.35%.
Q: How did Millennium's sector allocation shift in Q2 2026?
Millennium's Information Technology weighting rose to 37.1% in Q2 2026 from 29.65% in the prior quarter, the largest sector move in the filing. Financials fell from 12.57% to 10.04%, Energy declined from 4.98% to 3.07%, and Industrials rose to 10.45% from 9.21%.
Q: What happened to Millennium's IWM position in Q2 2026?
Millennium trimmed its IWM position in Q2 2026, but the dollar value rose because the stock price gained more than the trimmed shares were worth — this was real selling, not a buy. The position moved from $13.10B to $14.51B, with portfolio weight shifting from 5.45% to 5.25%.
Q: What's the easiest way to track Millennium Management's future filings?
The easiest way to track Millennium Management's future filings is to monitor their next quarterly 13F filing, which is due within 45 days of each calendar quarter-end. Millennium reported 4,182 holdings this quarter with a turnover ratio of 0.521612, so subsequent 13Fs will reveal whether the large SPY and index-ETF additions continue.