DP and SC report the CBOE options data, which these days account for just under 28% of the total equity options volume (CBOE still has the lion's share of index options volume).
The Options Clearing Corp. (OCC) covers the equity options volume for all six options exchanges, but unlike the CBOE, the OCC includes ETF options volume in their equity options data. The OCC daily data available to the average Joe Six Pack like me, only goes back to 2002. Below is a chart of the OCC "all exchange" equity PC ratio presented as a 10 day moving average. The call and put volume for SPY, IWM, and QQQQ (the highest volume ETFs) have been subtracted out of this data since the options volume for all three of the ETFs are normally heavily skewed toward puts.
The 10 day all exchange equity options PC ratio is currently at 0.87, still well below the March 2007 high, but creeping up on the previous high posted in late June 2002. After Monday's action, this indicator will likely exceed 0.90 due to a low PC value from ten days ago evaporating. Normally, before declaring a buy signal, one would like to see this PC ratio roll over since their peaks rarely coincide with price lows.
The OCC also publishes weekly equity options data which goes a step further by posting the Buy-To-Open (BTO) put and call volume. The next chart is the weekly BTO equity PC ratio for retail transactions of more than 50 contracts, i.e. the large retail players. This group is often right when price tops are posted (their put buying increases going into price highs), but this group also gets caught with their pants/skirts around their ankles by being very heavily short at price lows.... and they appear to be getting there.
The big fly in the bull's ointment over the past few weeks is the smallest retail equity option traders' (10 or less contracts per transaction) BTO PC ratio, which remained at a relatively low level until last week, when a little bit of fear finally surfaced with this group.... although the smallest retail customer BTO PC ratio is still not at the level normally associated with important price bottoms. So there may be more pain for the bulls, although this PC ratio normally tops out a couple weeks after price bottoms, due to the small traders loading up on puts at lower premiums while prices rise from their lows in anticipation of another pluge south.
The liquidity premiums and daily shorting data are both getting overdone, approaching territory normally associated with price lows... so with the Fed meeting and WWW due around mid-week, this could get interesting.
FWIW
Randy N.