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Of the 13 tracked institutions holding CALX, 6 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +6.3pt. It's a gauge of who owns the name, not just how many.
Among the 13 tracked institutional investors we monitor, CALX (CALIX INC) is held with a combined value of $1.32B across 26,263,096 shares. The largest holder is BlackRock, Inc. with a position worth $546.41M. Point72 Asset Management, L.P. opened a new position in the most recent quarter. 6 funds increased their holdings. 6 funds reduced their position.
Total Institutional Value
$1.32B
Total Shares Held
26,263,096
Institutional Holders
13
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $546.41M | 0.01% | -2.7% |
| 2 | VANGUARD GROUP INC | $439.45M | 0.01% | -2.2% |
| 3 | STATE STREET CORP | $127.64M | 0.00% | +10.1% |
| 4 | MILLENNIUM MANAGEMENT LLC | $93.28M | 0.04% | +32.0% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | $26.62M | 0.04% | +17.2% |
| 6 | WELLINGTON MANAGEMENT GROUP LLP | $26.19M | 0.00% | -16.4% |
| 7 | Point72 Asset Management, L.P. | $25.17M | 0.04% | New |
| 8 | CITADEL ADVISORS LLC | $20.98M | 0.01% | +834.1% |
| 9 | FMR LLC | $6.59M | 0.00% | +8.9% |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ | $3.27M | 0.00% | -90.3% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of CALX with a position worth $546.41M, representing 0.01% of their portfolio. In total, 13 institutional investors hold CALX with a combined value of $1.32B.
In the most recent quarter, 1 fund opened a new position in CALX. Additionally, 6 increased their holdings and 6 reduced their positions.
Institutional investors hold $1.32B worth of CALX stock across 13 positions. The largest institutional holder is BlackRock, Inc. with $546.41M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For CALX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their CALX positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$35.86
2026-07-27
YTD
-33.1%
2% of 52-week range
