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Know When Ken Griffin Trades.

Get an email when Ken Griffin's Citadel files its holdings with the SEC, led by what changed: new positions, big adds, and what was sold. Free.

Updated . Latest filing disclosed . We check for new filings every morning.

View Ken Griffin's Portfolio

Ranked #6 of 19 on the Fund Manager Leaderboard: stocks Ken Griffin added in 13F filings are up 6.7%, against 7.4% for the S&P 500 over the same dates. See the leaderboard

Form 13F: Information Table SEC

Ken Griffin's Citadel, Q2 2026

IssuerClassValueShares
STATE STR SPDR S&P 500 ETF T TR UNIT $35,656,923,314 47,748,200
INVESCO QQQ TR UNIT SER 1 $26,554,510,360 36,059,900
INVESCO QQQ TR UNIT SER 1 $23,490,644,520 31,899,300
13569 more rows

becomes

Ken Griffin's Q2 2026 holdings: 2666 new, 1951 sold out

  • Bought SPCX, a new position $1.4B
  • Added to IVV: +117.7% shares $13.2B
  • Sold all of WESTERN DIGITAL CORP was $1.4B

Holdings on Jun 30, filed Sep 2: 64 days later.

Quarterly 13F filings

Citadel Advisors reports its U.S. stock holdings to the SEC every quarter, within 45 days of the quarter's end.

What changed, not just what's held

We compare each filing with the previous one, so the alert opens with new positions, big adds, and exits instead of the full list of holdings.

Straight from the SEC

No middleman data feed. We check EDGAR, the SEC's public filing system, every day and link each alert to the original filing.

Questions

How do I get notified when Ken Griffin makes a stock trade?
Enter your email on this page and confirm it. It's free. We check the SEC's EDGAR system every day and email you when Ken Griffin's Citadel files a new 13F, led by what changed: new positions, big adds, and exits. Every email has a one-click unsubscribe.
Is it free?
Yes. Enter your email, confirm it, and you'll get an alert for each new filing.
What's in an alert?
New positions, positions that grew or shrank, full exits, and each holding's reported value at the end of the quarter.
Does it include options?
Yes. Calls and puts are listed in 13Fs and we label them, though a 13F doesn't give strike prices or expiry dates.
How do I stop?
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Based on public SEC filings by Citadel Advisors. GetMarketAlerts isn't affiliated with Ken Griffin or Citadel Advisors. Information only, not financial advice.