The Standard and Poors 500 index (SPX) closed today at 5668, nearly unchanged, up five points or 0.08%. SPX opened the week at 5636, up 0.6% for the week. Trading volume spiked to 6.9 billion shares on quadruple witching today, over twice the 50 day moving average (dma) at 3.2 billion shares.

VIX, the volatility index for the S&P 500 options, opened the week at 22.9% and declined steadily this week, closing at 20.5% today.

I track the Russell 2000 index with the IWM ETF, which closed today at 203.8, up 1.3 points or 0.6%. IWM opened the week at 202.3, up 0.7% for the week. IWM’s trading volume ran at or below average most of the week, but with a spike higher today due to quadruple witching.

The NASDAQ Composite index closed today at 17,784, up 92 points or 
0.5%. NASDAQ opened the week at 17,723, for a weekly gain of 0.3%. NASDAQ’s trading volume ran below the 50 dma most of this week and spiked higher today on quadruple witching.

The market checked all the boxes for a correction last week. Now the concern is whether the market may be pausing for another leg lower.

Trading volume has not given us a clue thus far. Traditionally, we look for what is known as capitulation, a bounce higher on strong trading volume. Today's volume was due to quadruple witching with the expiration of stock options, index futures, and index futures options contracts. That isn’t the volume spike we are watching for.
 
Trading in the broad market indices appears to have been establishing support over the past two weeks. However, that support could just be a short pause before the next leg lower in this correction. Trying to call the low is a dangerous game.
 
I use the Follow Through Day methodology developed by Investors Business Daily to determine when it is safe to begin to re-enter the market after a correction. The first thing we are watching for is a strong bullish day on above average trading volume on a broad market index like SPX or NASDAQ. Today’s bullish day on SPX and NASDAQ wasn’t much stronger than other bullish days for the past several trading sessions. We can safely ignore today’s quadruple witching volume spike for the purposes of determining Day One in the Follow Through Day methodology.

It can be tempting to jump back into the market. Be patient.