BlackRock Inc. ownership in TWTR / Twitter Inc - 13F, 13D, 13G Filings - Fintel.io (2024)

The Security and Class in the table below are shown exactly as filed by the investor.We do our best to track continuity of investments through acquisitions, and this will be reflected inthe table as changes in names. In addition to descriptive data, performance of the investmentis shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then usethat to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequentlyresult in a cost basis of zero.

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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets undermanagement must also disclose their put and call option holdings. Since put options generally indicatenegative sentiment, and call options indicate positive sentiment, we can get a sense of the overallinstitutional sentiment by plotting the ratio of puts to calls. The chart to the right plotsthe historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies ofusing total institutional ownership, which is that a significant amount of assets under management areinvested passively to track indices. Passively-managed funds do not typically buy options, so the put/callratio indicator more closely tracks the sentiment of actively-managed funds.