Info z forum Yahoo:

Yesterdays action on the dark pool !!.. Over 54% (that is 2.8M shares) went through the dark pool and not the lit exchanges...

NVAX VWAP

NVAX has traded a total of 5.3 million shares today, for a combined VWAP price of 146.31. The standard deviation of the one-minute VWAP intervals is 2.30. The last price was -2.1 standard deviations below the day's VWAP. The Volume-Weighted Average Price (VWAP) is a more comprehensive way to calculate the average price that NVAX trades at over a given time frame.
NVAX Dark Pool Trades

Dark pool trades reported for NVAX have accounted for 54% of the total volume today. Over the past 20 days, the average dark pool volume has been 48%. Total volume in the dark pool is 2.8 million. The VWAP price for only the dark pool trades is 146.41. TRF Trades for NVAX are reported by dark pools to Trade Reporting Facilites and represent activity away from the mainstream or "lit" exchanges.
NVAX Sweep Orders

Sweep orders have represented 31% of the stock volume in NVAX today, totaling 1.7 million shares for a VWAP price of 145.97. The Intermarket Sweep Order (ISO) is considered an aggressive marketable order that seeks immediate execution by sweeping the top of book of the lit exchanges. The ISO order can be an indication that a market participant is aggressively taking liquidity in a certain direction for NVAX.
Block Trades

Large block trades in NVAX, which often represent institutional trading, have accounted for 20% of all the volume on the day, for a total of 1.0 million. The 20-day average volume percentage has been 19%.

Nice... Thanks for sharing!

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