From 1235ET to 1255ET today, the SIP (the data feed that the general public relies on for its trade reporting) went dark for a number of symbols (including SPY – the massively liquid S&P 500 ETF). Luckily – for the High Frequency Traders – the Direct Feed kept on getting data and as the detailed charts from Nanex below show, the machines and their keepers continued to trade with asymmetric information… un-rigged?
Another case of Direct Feeds getting data while SIP customers do not. For 20 minutes!
1. SPY – Nasdaq Quote Spread.
Note the gap from 12:35 to 12:55.
2. SPY Nasdaq Trades.
No gap in trades.
3. SPY – Nasdaq Quote Spread and NBBO (Red shading shows where NBBO was crossed).
4. SPY – Trades from all Exchanges.
5. DIA – Quotes from all Exchanges.
Note the gap from 12:54 to 13:07.
6. DIA – Trades from all Exchanges.
Trades not affected (direct feeds were functioning normal).
On a side note.. this is what The Bloomberg Headlines Feed has looked like for the last 8 minutes…
Shit is broke…
via Zero Hedge http://ift.tt/1hsuRBo Tyler Durden