Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Quantum Si Inc (QSI)

153 + Investors. Track Smart Money conviction in QSI. See who's accumulating, reducing, or initiating positions.

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↑ +21
Streak
2Q ▲
Buyers last Q
57%

Smart Money Signals — QSI

Based on 154 hedge funds · latest filing: 2026 Q1 · updated quarterly

📈

Buying streak — 2 quarters in a row

last 6Q
For 2 consecutive quarters, more hedge funds added QSI than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.
🏔️

At the ownership peak (100% of max)

100% of all-time peak
154 hedge funds hold QSI right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.
📶

Steady growth — +15% more funds vs a year ago

fund count last 6Q
+20 new funds entered over the past year (+15% YoY). Gradual, steady growth in institutional ownership is generally a healthy signal — not a speculative rush, but consistent conviction.
🟡

Slight buying edge — 57% buying

85 buying63 selling
Last quarter: 85 funds bought or added vs 63 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.
📈

More new buyers each quarter (+12 vs last Q)

new funds entering per quarter
Funds opening a new QSI position: 14 → 16 → 33 → 45. A growing influx of new institutional buyers means the asset is still gathering momentum — the consensus hasn't fully saturated yet.
📌

Mixed — 39% long-term, 34% new

■ 39% conviction (2yr+) ■ 27% medium ■ 34% new
Of the 154 current holders: 60 (39%) held >2 years, 41 held 1–2 years, and 53 entered in the last year. A mixed base — the stock has long-term believers but also recent buyers who haven't been tested by a downturn yet.
🚀

Acceleration phase — new buyers rushing in

37 → 14 → 16 → 33 → 45 new funds/Q
New funds entering each quarter: 14 → 16 → 33 → 45. The pace of institutional discovery is accelerating sharply. This is the 'hot idea' phase — the thesis is being passed from fund to fund. You are not late — the accumulation wave is still building.
🏛️

Veteran-anchored — 48% veterans vs 39% newcomers

■ 48% veterans ■ 13% 1-2yr ■ 39% new
Entry-cohort mix of 161 holders: 78 (48%) are 2+ year veterans, 21 entered 1–2 years ago, and 62 (39%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
✅

Strong quality — 23% AUM from major funds

23% from top-100 AUM funds
31 of 153 holders rank in the top 100 by AUM, accounting for 23% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.
4.1
out of 10
Moderate Exit Risk
Exit risk score 4.1/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Institutional Sentiment Summary — QSI

In 2026 Q1, 85 hedge funds were net buyers of QSI (45 opened a new position, 40 added to an existing one), while 63 reduced or exited (39 trimmed, 24 sold completely) — a 57% buyer ratio, indicating a slight buying edge. Net buying has persisted for two consecutive quarters, a positive momentum signal. 23% of total institutional value in QSI is held by top-100 AUM funds, reflecting strong institutional quality. Net fund flow last quarter: +21 funds (more new holders than closures). Total institutional holders: 154.

Hedge Fund Ownership: QSI

How many hedge funds hold QSI — quarterly history vs. share price
Quarterly hedge fund ownership of QSI vs. share price

Market Analysis: QSI

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: QSI

-- --

Institutional ownership data sourced from SEC EDGAR Form 13F-HR filings.

Is It Too Late to Buy Quantum Si Inc (QSI) Based on Hedge Fund 13F Filings?

Signal Freshness measures how much QSI has moved relative to its sector benchmark (XLV) since the 2026 Q1 13F filing. A stock that has barely outrun its sector is still a relatively fresh entry point — the fund's thesis has not yet been priced in by the broader market.

Since Quarter End March 31, 2026 · 81d ago
QSI
+29.1%
XLV
+2.1%

QSI outperformed XLV by +27.0% since March 31, 2026.

Since 13F Filing Date May 15, 2026 · 36d ago
QSI
+6.3%
XLV
+3.2%

Since the filing became public, QSI outperformed XLV by +3.1% .

Interpretation: The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference. Learn more →

Smart Money Signal ?
Limited Smart Money Interest

No strong consensus or elite conviction detected among institutional holders.

18 top-rated funds 0 high-conviction
Consensus
5.6
/ 10
breadth
×
Elite
0.1
/ 10
conviction
Hedge Fund Positioning: QSI
153 + Investors

Track Smart Money conviction in QSI. See who's accumulating, reducing, or initiating positions.

Metric All 13F Filers (2026 Q1) Prior (2025 Q4) Change
Funds Holding 153 133 15.04%
13F Shares 65M 69M -6.76%
Total Value $74M $76M -3.0%
New Positions 44 33 +11
Increased Positions 39 36 +3
Closed Positions 24 21 +3
Reduced Positions 37 39 -2
Total Calls 5 7 -28.57%
Total Puts 3 4 -25.0%
PUT/CALL Ratio 0.6 0.57 Bullish

Statistics: QSI

View More

Valuation Measures Data as of: --

Market Cap --
Enterprise Value --
Trailing P/E --
Forward P/E --
PEG Ratio (5yr expected) --
Price/Sales (ttm) --
Price/Book (mrq) --
Enterprise Value/Revenue --
Enterprise Value/EBITDA --
Beta (5Y Monthly) --
Short Ratio (Days to Cover) --
Short % of Float --

Financial Highlights

Profitability
Profit Margin --
Return on Assets (ttm) --
Return on Equity (ttm) --
Income Statement & Cash Flow
Revenue (ttm) --
Net Income Avi to Common (ttm) --
Diluted EPS (ttm) --
Total Cash (mrq) --
Total Debt/Equity (mrq) --
Levered Free Cash Flow (ttm) --

Institutional Holders (2026 Q1)

153 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in QSI. Verified SEC 13F-HR filings.

QUARTER:
Top 25 QSI holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Fosun International Ltd 0.14% 743,935 $576K
2 Amova Asset Management Americas, Inc. 0.05% 4,391,666 $3.4M
3 ARK Investment Management LLC 0.04% 6,878,899 $5.3M
4 Green Alpha Advisors, LLC 0.03% 43,208 $33K
5 Knollwood Investment Advisory, LLC 0.02% 300,000 $232K
6 Northern Lights Advisors, Inc. 0.02% 29,989 $33K
7 IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.02% 292,107 $226K
8 Ground Swell Capital, LLC 0.02% 10,132 $8K
9 Red Reef Advisors LLC 0.01% 10,000 $11K
10 Shay Capital LLC 0.01% 150,922 $117K
11 Verdence Capital Advisors LLC 0.01% 203,855 $158K
12 Red Wave Investments LLC 0.01% 37,000 $29K
13 Wealth Management Associates, Inc. 0.01% 26,950 $21K
14 XTX Topco Ltd 0.01% 389,254 $301K
15 DLK Investment Management, LLC 0.01% 16,750 $13K
16 NINE MASTS CAPITAL Ltd 0.00% 41,134 $32K
17 Flagship Private Wealth, LLC 0.00% 14,158 $11K
18 Bridgeway Capital Management, LLC 0.00% 261,100 $202K
19 Essential Partners LLC 0.00% 15,436 $12K
20 AlphaCore Capital LLC 0.00% 128,449 $99K
21 Sumitomo Mitsui Trust Group, Inc. 0.00% 4,391,666 $3.4M
22 China Universal Asset Management Co., Ltd. 0.00% 34,702 $27K
23 Hbw Advisory Services LLC 0.00% 22,697 $18K
24 Quantbot Technologies LP 0.00% 58,461 $45K
25 Pinney & Scofield, INC. 0.00% 3,680 $3K
Investor Ownership
History 		% of Portfolio Prev % Rank Conviction Avg Buy Price 13F Score™ 3Y / 7Y Sell Timing Shares Mkt Value Change Change % Source Quarter Filed

Frequently Asked Questions — Quantum Si Inc (QSI)

What does the Smart Money Trend signal show for QSI?

Buying streak — 2 quarters in a row: For 2 consecutive quarters, more hedge funds added QSI than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

What is the institutional breadth score for QSI?

Slight buying edge — 57% buying: Last quarter: 85 funds bought or added vs 63 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.

What is the fund quality score for QSI holders?

Strong quality — 23% AUM from major funds: 31 of 153 holders rank in the top 100 by AUM, accounting for 23% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.

How long have hedge funds held QSI?

Mixed — 39% long-term, 34% new: Of the 154 current holders: 60 (39%) held >2 years, 41 held 1–2 years, and 53 entered in the last year. A mixed base — the stock has long-term believers but also recent buyers who haven't been tested by a downturn yet.

Is it too late to buy Quantum Si Inc (QSI) following the 2026 Q1 hedge fund 13F filings?

As of today, QSI has moved +6.3% since the 2026 Q1 13F filing date (May 15, 2026), compared to +3.2% for the XLV sector ETF — an outperformance of +3.1%. Since the quarter end (March 31, 2026), QSI has gained +29.1% vs +2.1% for XLV. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

Disclaimer: The information on this page is for informational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell any security. Institutional holdings data is sourced from SEC Form 13F filings and reflects positions as of the filing date. Past performance of any fund or portfolio is not indicative of future results. 13Foresight is not a registered investment adviser. Always conduct your own due diligence before making investment decisions.

Full history →