NEUTRAL — WATCH
No clear whale direction for WDC. Bullish and bearish signals roughly cancel out. Insiders are net sellers (175,984 shares sold vs 23,051 bought) — management reducing exposure. Strong institutional ownership at 103.5%, but 2 of 10 top holders are distributing.
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
Unusual Strikes — Vol/OI > 3x (0C / 1P)
High Volume Contracts — Vol > 500 (2 contracts)
PUT$2302026-03-27551
PUT$2502026-04-17548
- Put/Call volume ratio: 0.94 (bullish)
- Total options volume: 19,176 (calls 9,865 / puts 9,311)
- Top unusual: PUT $385.0 exp 2026-04-10 — vol/OI 4.0x
👤 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 / 7 sells / 0 grants)
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
SELLTREGILLIS CYNTHIA LOCK4382026-02-24
SELLDAVIS BRIAN SCOTT10,0002026-02-17
- Insider buying: 23,051 shares
- Insider selling: 175,984 shares
- 36 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
103.5%
ACCUMULATION vs DISTRIBUTION
20% ACCUMULATING
80% DISTRIBUTING
NET SHARES FLOW
-9,771,051
Institutional Position Changes (QoQ)
▲▲ HEAVY BUYFMR, LLC9.97%+42.2%+10,037,174
▲ ADDINGMorgan Stanley2.64%+6.5%+541,973
▬ HOLDBlackrock Inc.10.47%+2.3%+794,963
▬ HOLDState Street Corporation4.63%+1.5%+233,483
▬ HOLDWCM Investment Management, LLC1.97%-1.3%-87,444
▬ HOLDGeode Capital Management, LLC2.74%-1.4%-131,799
▬ HOLDAmeriprise Financial, Inc.2.51%-1.9%-163,253
▬ HOLDVanguard Group Inc12.49%-2.2%-934,925
▼▼ HEAVY SELLJPMORGAN CHASE & CO4.22%-40.5%-9,742,987
▼▼ HEAVY SELLBank of America Corporation3.55%-46.1%-10,318,236
ETF & Mutual Fund Flow (1 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
▬ HOLDInvesco QQQ Trust, Series 1-2.9%-223,233
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Mid-Cap Index F-3.0%-231,734
▬ HOLDColumbia Fd.s Series TRT II-Columbia Seligman-2.4%-115,443
▬ HOLDiShares Trust-iShares Core S&P 500 ETF-0.9%-41,749
▬ HOLDFidelity Concord Street Trust-Fidelity 500 In+0.5%+20,320
▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P -1.5%-62,486
★ NEW POSIJPMorgan Trust II-JPMorgan Large Cap Growth FNEW+1,841,308
▼▼ HEAVY SEFidelity Select Portfolios-Select Semiconduct-30.4%-1,427,597
- Institutional ownership: 103.5%
- Smart money flow: 2 adding / 2 selling / 6 hold
- Net shares removed by institutions: -9,771,051
- Biggest mover: Bank of America Corporation sold 10,318,236 shares (-46.1%)
🕶 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: 9.2% of float
- Days to cover: 3.4
- Short interest MoM: ↓ 12.7%
- Squeeze risk: LOW