13F
中
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WEITZ INVESTMENT MANAGEMENT, INC.

13F equity value
$1.4B
Positions
49
Top 10 concentration
54.6%
Quarters / total new picks
23 / 44
13F equity value over time
$0M$1B$3B2017201820192020202120222023202420252026

"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 23 quarters, returned +1.5% per quarter — versus +4.6% per quarter from simply owning every 13F stock. It beat that baseline in only 34.8% of quarters (excess t = -0.82, not statistically significant). Its filings tell you what it bought — not what you should buy.

Avg 2Q excess
-2.9%
t-stat
-0.82
Quarterly win rate
35%
Annualized excess
-18.4%
$1 → follow vs universe
$0.96 vs $2.55
Cumulative return: $1 invested in new picks vs universe
1.00 20180331: universe 1.04120180630: universe 0.95920180930: universe 1.00320181231: universe 0.99220190331: universe 0.97520190930: universe 1.04820191231: universe 0.84620200331: universe 1.02020200630: universe 1.12620200930: universe 1.38120201231: universe 1.44420210630: universe 1.56020220331: universe 1.67520220630: universe 1.55220221231: universe 1.44120230331: universe 1.51820230930: universe 1.72420231231: universe 1.80120240331: universe 1.84120240630: universe 2.00920250331: universe 2.19020250930: universe 2.46220251231: universe 2.547 20180331: follow 1.05120180630: follow 0.94720180930: follow 0.92620181231: follow 0.91020190331: follow 0.71520190930: follow 0.81420191231: follow 0.44120200331: follow 0.52720200630: follow 0.65420200930: follow 0.68920201231: follow 0.89920210630: follow 0.82520220331: follow 1.01720220630: follow 0.77320221231: follow 0.66320230331: follow 0.68420230930: follow 0.78520231231: follow 0.77020240331: follow 0.82520240630: follow 0.86320250331: follow 1.05320250930: follow 0.97920251231: follow 0.958 0.41 1.58 2.75 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 49 · 2026 Q1

Ticker Value Weight QoQ
BRK/B $134M
9.3%
TRIM
GOOG $94M
6.5%
TRIM
DHR $91M
6.3%
TRIM
V $80M
5.6%
HOLD
MA $73M
5.1%
TRIM
AON $69M
4.8%
TRIM
MSFT $63M
4.4%
ADD
META $60M
4.2%
TRIM
TMO $59M
4.2%
TRIM
VMC $58M
4.1%
HOLD
IEX $50M
3.5%
TRIM
AMZN $46M
3.2%
HOLD
HEI/A $40M
2.8%
ADD
TECH $34M
2.4%
TRIM
ACN $34M
2.4%
ADD
ADI $34M
2.4%
TRIM
EFX $34M
2.4%
TRIM
TXN $31M
2.2%
TRIM
SIRI $30M
2.1%
TRIM
LBRDK $29M
2.0%
TRIM

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

APHASMLFERGIRNVDAPOOLRGENTSM

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.