ZD β€” ZIFF DAVIS INC

Ownership history in CenterBook Partners LP  Β·  8 quarters on record

This page tracks every 13F SEC filing in which CenterBook Partners LP reported a position in ZIFF DAVIS INC (ZD). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β€” sourced directly from SEC EDGAR 13F filings.

πŸ” Peak position
0.32% (2021 Q4)
πŸ“Š Avg. % of fund
0.15%
πŸ“… First filed
2021 Q4
πŸ“… Last filed
2025 Q3
⏱ Quarters held
8

Position Intelligence

CenterBook Partners LP Γ— ZD AI Analytics

πŸ“‰ CenterBook Partners LP underperformed the S&P 500 by –238.5% annually on this ZD position. Timing score: 43% (3/7 decisions correct). Average cost basis: $89.53. Maximum drawdown during holding period: –65.6%.

πŸ“ˆ Position Alpha vs SPY
-238.5%
annualised excess return

❌ Significantly underperformed the S&P 500 by 238.5% ann.
2 quarters analyzed

⏱️ Timing Score
43%

⚠️ Poor timing β€” buys often preceded drops, trims preceded rallies.
3 of 7 add/trim decisions correct

πŸ’° Entry Quality
$89.53
-57.4% vs current ($38.10)

Best entry: $68.48 (2022 Q3)  Β·  Worst: $110.86 (2021 Q4)

πŸ›‘οΈ Drawdown Resilience
–65.6%
max drawdown while held

πŸ’ͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.

πŸ’ͺ Fund Conviction
62%
buy-side decisions

5 adds Β· 3 trims. Bought during 3 of 6 down-price quarters. πŸ“ˆ More buys than sells across the holding period.

πŸ“‘ Position Trajectory
β†’ Stable
last 4–5 quarters trend

βš–οΈ Portfolio weight has remained relatively stable β€” conviction maintained.
Currently 0.02% of portfolio

⚠ Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ— 4 (annualised). Not investment advice.

% of Fund (quarterly)    ZD price (monthly, adj. close)
πŸ“‹ Quarterly Holdings History 8 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 REDUCED 10,553 -2,804 -21.0% 0.02% $402K $38.10
2023 Q2 ADDED 13,357 +1,781 +15.4% 0.12% $936K $70.06
2023 Q1 REDUCED 11,576 -1,396 -10.8% 0.13% $904K $78.05
2022 Q4 ADDED 12,972 +6,045 +87.3% 0.17% $1.0M $79.10
2022 Q3 ADDED 6,927 +1,717 +33.0% 0.09% $474K $68.48
2022 Q2 REDUCED 5,210 -3,761 -41.9% 0.08% $388K $74.53
2022 Q1 ADDED 8,971 +4,085 +83.6% 0.31% $868K $96.78
2021 Q4 INITIATED 4,886 β€” β€” 0.32% $542K $110.86

🏒 Other funds also holding ZD

As of 2025 Q4 β€” sorted by position size

CDAM (UK) Ltd 3Y 7Y 8.65% Incline Global Management LLC 3Y 7Y 4.83% BRAVE ASSET MANAGEMENT INC 3Y 7Y 3.48% Pale Fire Capital SE 3Y 2.85% Bastion Asset Management Inc. 1.82% RICE HALL JAMES & ASSOCIATES, LLC 3Y 7Y 1.44% QSV Equity Investors LLC 1.08% Ewing Morris & Co. Investment Partners Ltd. 3Y 1.06% ArrowMark Colorado Holdings LLC 3Y 7Y 1.06% CORBYN INVESTMENT MANAGEMENT INC/MD 3Y 7Y 0.96%
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