CAXTON ASSOCIATES LLP ACM AECOM

Ownership history in CAXTON ASSOCIATES LLP  ·  4 quarters on record

AI Ownership Summary

CAXTON ASSOCIATES LLP reported AECOM (ACM) in 4 quarterly 13F filings from 2025 Q1 through 2026 Q1. Peak portfolio weight reached 0.15% in 2026 Q1. The latest visible filing shows ACM at 0.15% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this ACM ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CAXTON ASSOCIATES LLP's position in AECOM, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

ACM was reported at 0.15% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.15% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q1 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How CAXTON ASSOCIATES LLP held ACM — position size vs. price
% of Fund (quarterly)    ACM price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 4 quarters  
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED 79,230 +73,869 +1377.9% 0.15% $6.7M 2026-05-14 $71.00
2025 Q4 REDUCED 46.5% -10.8% 5,361 -4,658 -46.5% 0.01% $511K 2026-02-13 $87.99
2025 Q2 REDUCED 10,019 -356 -3.4% 0.03% $1.1M 2025-08-15 $118.53
2025 Q1 INITIATED 10,375 0.03% $962K 2025-05-16 $108.17

FAQ About CAXTON ASSOCIATES LLP and ACM

These are the practical questions this page is built to answer before you even open the full history table.

How long has CAXTON ASSOCIATES LLP reported owning ACM?

CAXTON ASSOCIATES LLP reported ACM across 4 quarterly 13F filings, from 2025 Q1 through 2026 Q1.

What was the largest reported ACM position in CAXTON ASSOCIATES LLP's portfolio?

The largest reported portfolio weight for ACM was 0.15% in 2026 Q1.

What is the latest reported ACM position on this page?

The most recent filing on this page is 2026 Q1, when CAXTON ASSOCIATES LLP reported 79,230 shares, equal to 0.15% of portfolio, with an estimated market value of $6.7M.

What does the chart on this ACM ownership page compare?

The chart compares CAXTON ASSOCIATES LLP's quarterly ACM portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did CAXTON ASSOCIATES LLP time their ACM position?

Based on 13F filing dates vs. subsequent ACM price moves, CAXTON ASSOCIATES LLP correctly timed 3 out of 3 reported position changes (100%). The annualised alpha on ACM relative to SPY over the holding period was -48.7%.

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