13F
中
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J. L. Bainbridge & Co., Inc.

13F equity value
$1.1B
Positions
103
Top 10 concentration
63.7%
Quarters / total new picks
27 / 145
13F equity value over time
$0M$611M$1B201820192020202120222023202420252026

"13F equity value" = market value of this filer's US-listed long equity positions only. It excludes cash, bonds, non-US and short positions, so it understates a fund's true assets under management — often by a lot.

Not significant Verdict

13F holdings are disclosed ~45 days after quarter-end, and they never reveal when within the quarter a fund actually bought. So any 13F-based summary is structurally late and blurred — this applies to every fund, including this one.

We backtested copying it anyway. Buying this fund's new positions the day each filing went public, over 27 quarters, returned +2.3% per quarter — versus +2.6% per quarter from simply owning every 13F stock. It beat that baseline in only 40.7% of quarters (excess t = 0.05, not statistically significant). Its filings tell you what it bought — not what you should buy.

Avg 2Q excess
+0.1%
t-stat
0.05
Quarterly win rate
41%
Annualized excess
-2.3%
$1 → follow vs universe
$1.57 vs $1.81
Cumulative return: $1 invested in new picks vs universe
1.00 20180930: universe 1.04620181231: universe 1.03520190331: universe 1.01720190630: universe 1.09320190930: universe 1.17520191231: universe 0.94820200630: universe 1.04820200930: universe 1.28520201231: universe 1.34320210331: universe 1.35520210630: universe 1.46420210930: universe 1.31420211231: universe 1.11820220331: universe 1.20120221231: universe 1.11520230331: universe 1.17520230630: universe 1.13320230930: universe 1.28620231231: universe 1.34320240331: universe 1.37420240630: universe 1.49820240930: universe 1.48520241231: universe 1.38620250331: universe 1.51120250630: universe 1.55920250930: universe 1.75320251231: universe 1.813 20180930: follow 1.02120181231: follow 0.97320190331: follow 0.96120190630: follow 0.93720190930: follow 1.03720191231: follow 0.94220200630: follow 0.99720200930: follow 1.05620201231: follow 0.97120210331: follow 0.98220210630: follow 0.99520210930: follow 0.89120211231: follow 0.81320220331: follow 0.78820221231: follow 0.73720230331: follow 0.74620230630: follow 0.71620230930: follow 0.90120231231: follow 0.89220240331: follow 0.85020240630: follow 0.82120240930: follow 0.82720241231: follow 0.77120250331: follow 0.87620250630: follow 0.88520250930: follow 1.19720251231: follow 1.573 0.66 1.31 1.96 20182019202020212022202320242025 Follow Universe

Quarterly compounding, invested quarters only · entry 47 days after quarter-end (when 13F data becomes public)

Listed as facts. See the verdict above before treating this as signal.

Top 20 holdings of 103 · 2026 Q1

Ticker Value Weight QoQ
MSFT $117M
10.6%
HOLD
AAPL $117M
10.5%
TRIM
GS $72M
6.5%
TRIM
GOOGL $71M
6.4%
TRIM
AMZN $59M
5.3%
ADD
ETN $57M
5.1%
HOLD
LLY $57M
5.1%
HOLD
GOOG $56M
5.0%
TRIM
META $52M
4.7%
ADD
TSM $50M
4.5%
TRIM
GM $42M
3.8%
HOLD
SMAX $38M
3.4%
TRIM
BX $36M
3.3%
ADD
CI $33M
3.0%
ADD
GE $29M
2.6%
TRIM
NVDA $26M
2.3%
ADD
MAXJ $25M
2.3%
TRIM
DAL $25M
2.3%
TRIM
BRK/B $23M
2.1%
TRIM
DIS $20M
1.8%
HOLD

QoQ vs previous quarter's share count · NEW = new position · ADD/TRIM = ±2% shares · HOLD = unchanged.

Listed as facts. See the verdict above before treating this as signal.

New positions in 2026 Q1

IEFASGOVSNDKWDC

Method & Limitations

Method: a "new position" = held this quarter, absent last quarter (options excluded; stocks with <50 prior holders excluded to filter spin-off artifacts). Entry 47 days after quarter-end — the first day the public could act on the filing. Benchmark = equal-weighted universe of all 13F-held stocks. Limitations: quarterly snapshots can't see intra-quarter trades; survivorship bias — funds that shut down are absent, which flatters the sample. Statistics, not advice.