13F Insight
DOSSIER · 13F-HR · Q1 2026

Maven Securities LTD

$5.2B in tracked AUM across 424 positions as of Q1 2026.

MS
CIK 0001633046 · last filed Mar 31, 2026
Total AUM
$5.2B
as of Q1 2026
Holdings
424
—
positions
Whale Score
60
60
tracked
Activity
—
no data
changes this Q
AI Analysis · Q1 2026
Comprehensive SEC 13F Analysis: Maven Securities LTD
1. Portfolio Overview

Maven Securities LTD manages a substantial portfolio valued at approximately $4.05 billion as of September 30, 2025. The portfolio is highly diversified, comprising 465 individual holdings. However, the filing reveals a unique structural characteristic: a massive portion of the portfolio ($2.14 billion, or roughly 53%) is categorized as "Unknown," with a relatively small explicit allocation to ETFs ($147...

The firm experienced a slight contraction in assets under management (AUM) this quarter, with the total portfolio value decreasing by 3.7% (from $4.20B to $4.05B). This decline occurred alongside a high-turnover strategy characterized by significant rotation: the firm executed 22 new buys and 22 complete exits, with zero positions remaining unchanged in the top activity summary. This indicates an actively managed approach with rapid capital redeployment rather than a static buy-and-hold strategy.

2. Key Holdings

The portfolio's top 50 holdings reveal a heavy reliance on Exchange Traded Funds (ETFs) for liquidity and broad market exposure, mixed with concentrated positions in specific blue-chip stocks.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q1 2026. Methodology

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
78462F953
STATE STR SPDR S&P 500 ET
$227M349K4.4%02
46090E903
INVESCO QQQ TR
$225M390K4.3%03
464287905
ISHARES TR
$211M898K4.1%04
78462F903
STATE STR SPDR S&P 500 ET
$189M291K3.6%05
SPY
STATE STR SPDR S&P 500 E
$168M258K3.2%06
46090E953
INVESCO QQQ TR
$142M246K2.7%07
81369Y906
SELECT SECTOR SPDR TR
$102M1.7M2.0%08
92189F956
VANECK ETF TRUST
$87M273K1.7%09
81369Y956
SELECT SECTOR SPDR TR
$84M1.5M1.6%10
023135956
AMAZON COM INC
$82M395K1.6%

Filing history

2026Q1Mar 31
$5.2B▲ 14.8%
424 positionsView →2025Q4Dec 31
$4.5B▲ 11.8%
479 positionsView →2025Q3Sep 30
$4.0B▼ 3.7%
465 positionsView →2025Q2Jun 30
$4.2B▲ 28.7%
823 positionsLocked2025Q1Mar 31
$3.3B▼ 20.8%
814 positionsLocked2024Q4Dec 31
$4.1B▼ 20.2%
856 positionsLocked2024Q3Sep 30
$5.2B▲ 14.5%
930 positionsLocked2024Q2Jun 30
$4.5B▲ 165.7%
982 positionsLocked2024Q1Mar 31
$1.7B▼ 64.9%
358 positionsLocked2023Q4Dec 31
$4.8B▼ 45.2%
997 positionsLocked2023Q3Sep 30
$8.8B▲ 32.8%
1,144 positionsLocked2023Q2Jun 30
$6.6B▲ 38.3%
899 positionsLocked
Showing 12 of 35