NEUTRAL — WATCH
No clear whale direction for WDC. Bullish and bearish signals roughly cancel out. Insiders are net sellers (181,021 shares sold vs 23,145 bought) — management reducing exposure. Strong institutional ownership at 101.2% with 4 of 10 top holders actively accumulating this quarter.
Action Plan
- Hold existing positions — no strong directional signal
- Wait for clearer whale activity before adding
- Monitor next earnings for institutional positioning changes
📈 Options Flow 期权异动
Unusual options volume vs open interest. High volume/OI ratio signals whale positioning. Put/Call ratio indicates directional bias.
PUT / CALL RATIO
0 (Bullish)1.02.0+ (Bearish)
0.94
NEUTRAL
High Volume Contracts — Vol > 500 (6 contracts)
CALL$6502026-05-221,408
PUT$4152026-05-29615
CALL$6002026-06-18614
CALL$7202026-06-18606
CALL$5002026-05-22596
PUT$4002026-05-22528
- Put/Call volume ratio: 0.94 (bullish)
- Total options volume: 26,791 (calls 13,787 / puts 13,004)
👤 Insider Trading 内部交易
SEC Form 4 filings — officer and director buys/sells in the last 90 days. Net buying is a strong bullish signal.
Recent Insider Transactions (0 buys / 9 sells / 0 grants)
SELLDAVIS BRIAN SCOTT10,0002026-05-11
SELLGUBBI VIDYADHARA K4,6742026-05-04
SELLTAN IRVING20,0002026-05-01
SELLTREGILLIS CYNTHIA LOCK3632026-04-21
SELLGUBBI VIDYADHARA K8,5182026-03-06
SELLGUBBI VIDYADHARA K10,1482026-03-04
SELLTREGILLIS CYNTHIA LOCK9,3242026-03-04
SELLCOLE MARTIN I6,0002026-03-02
SELLTREGILLIS CYNTHIA LOCK2142026-02-26
- Insider buying: 23,145 shares
- Insider selling: 181,021 shares
- 37 Form 4 filings in last 90 days
- Net insider SELLING — bearish signal
🏦 Smart Money Flow 机构资金流向
Quarter-over-quarter position changes from 13F filings. Shows whether institutional investors are accumulating (buying more) or distributing (selling) — the strongest signal of whale conviction.
INSTITUTIONAL OWNERSHIP
101.2%
ACCUMULATION vs DISTRIBUTION
40% ACCUMULATING
60% DISTRIBUTING
NET SHARES FLOW
+27,129,447
Institutional Position Changes (QoQ)
★ NEW POSITIONVanguard Capital Management LLC6.39%NEW+11,017,430
★ NEW POSITIONCapital World Investors3.45%NEW+10,816,433
★ NEW POSITIONVanguard Portfolio Management LLC4.98%NEW+8,586,326
▲▲ HEAVY BUYJPMORGAN CHASE & CO5.08%+22.5%+3,216,516
▬ HOLDBlackrock Inc.10.38%+0.7%+259,222
▬ HOLDGeode Capital Management, LLC2.75%+2.1%+194,927
▬ HOLDState Street Corporation4.49%-1.5%-230,738
▼ TRIMMINGMorgan Stanley2.30%-11.2%-1,005,357
▼ TRIMMINGFMR, LLC9.17%-6.4%-2,169,505
▼▼ HEAVY SELLBank of America Corporation2.46%-29.5%-3,555,807
ETF & Mutual Fund Flow (2 adding / 1 selling)
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar-1.7%-182,496
▬ HOLDVANGUARD INDEX FUNDS-Vanguard 500 Index Fund+0.7%+61,634
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Mid-Cap Index F-3.0%-231,734
▬ HOLDInvesco QQQ Trust, Series 1+1.6%+114,276
▬ HOLDiShares Trust-iShares Core S&P 500 ETF0.0%0
▬ HOLDFidelity Concord Street Trust-Fidelity 500 In-0.5%-21,320
▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P +3.0%+119,394
★ NEW POSIAMERICAN BALANCED FUNDNEW+1,899,937
★ NEW POSIJPMorgan Trust II-JPMorgan Large Cap Growth FNEW+1,841,308
▼▼ HEAVY SEColumbia Fd.s Series TRT II-Columbia Seligman-28.2%-1,345,968
- Institutional ownership: 101.2%
- Smart money flow: 4 adding / 3 selling / 3 hold
- Net shares added by institutions: +27,129,447
- Biggest mover: Vanguard Capital Management LLC added 11,017,430 shares (+100.0%)
🕶 Short Interest & Dark Pool 做空 & 暗池
Short interest as % of float and days-to-cover. Rising SI = bearish pressure. High SI + decreasing = shorts covering (bullish). Squeeze risk rated by SI level.
SHORT INTEREST (% OF FLOAT)
0%10%20%30%+
- Short interest: 9.5% of float
- Days to cover: 3.9
- Short interest MoM: ↑ 9.3%
- Squeeze risk: LOW