Triple witching (now quadruple witching) used to hold lots of risk for retail investors trading options. Today, the process is more smooth and orderly because options expirations are spread out more.
“Witching” days are when stock index futures, stock index options, and stock options all expire on the same day
There’re plenty of things investors should probably have a healthy sense of fear about, but arguably, “witching” is no longer one of the biggies.
All the risk that once hit the markets on a single Friday each quarter when contracts for stock index futures, stock index options, stock options, and single-stock futures all expire is now spread over a longer time period. When “triple” witching—or as some call it, “quadruple” witching—looms, you don’t necessarily have to run and hide anymore.
“Witching day isn’t the event it once was,” said JJ Kinahan, chief market strategist at TD Ameritrade. “Back when ‘witching’ was huge, S&P 500 Index futures and options contracts only had a Friday expiration. Now there are Monday, Wednesday, and Friday expirations. So now you have the whole week. There are also weekly options, which allow more opportunity to roll over risk. The individual investor today has more options—it’s a pun, but it’s true.”
A couple of decades ago, volatility associated with triple witching (which got the “quadruple” label after single-stock futures debuted in 2002) sometimes meant not being 100% certain of your position going into the weekend. If, for example, the index fluctuated around an options strike in which you held a short position, you might not know whether (or how many) of those options would be assigned to you.
And remember, we’re talking about the days before electronic order matching; every trade detail—counter-party, price, quantity, and contract month—was negotiated in a pit, and not all the information matched up;
Witching could also be tough on the average retail investor, who didn’t typically have access to the same information as traders on the floor.
From his current perspective, Kinahan can look back fondly on those times, even though it wasn’t as easy for retail investors back then.
“It was great when it was in its heyday,” Kinahan said, discussing his memories of triple witching in the days when he was a young trader in the Chicago pits. “As a market maker, it was fantastic because you held a lot of information and had a lot of knowledge as to what was trading. It was a very volatile few days with lots of opportunity.”
The volatility would often start a day or two before expirations and last right up to the closing minutes, he recalled. Pit traders held a big advantage at the time because they had a physical presence at the point of price discovery. “When I was a young man, we’d see the order flow,” Kinahan remembered. But even pit traders sometimes suffered nasty surprises.
“Today, market-on-close orders have to be in by 3:40 p.m. ET,” Kinahan said. “But back then there were many different rules, so big orders would go in with a minute left, and you could have giant moves with one minute left.”
Retail investors at the time had no access to the order flow and risked sharp losses if they held positions into the close, according to Kinahan. Although triple witching occurred only once a quarter, options expiration at the end of each month was another day that put retail investors at a disadvantage.
Rules put into place since then have smoothed out the process a great deal, and technology also helps protect retail investors against the more dramatic impacts of witching.
“Electronic trading has evened the playing field so the retail trader has a fair shot and can manage risk."
“As a retail trader, the fact that it’s different now is a much better thing,” Kinahan said. “Electronic trading has evened the playing field so the retail trader has a fair shot and can manage risk. All orders are now electronic, so it’s not just traders in a pit. Markets are more efficient, and swings are less dramatic in the last few minutes of the day.”
All that said, triple (or quadruple) witching still occurs on the third Friday of March, June, September, and December, and those remain days when investors might want to exercise a little more care, just as Kinahan did in the pits long ago.
“I still think you have to be aware of it,” Kinahan said. “Some of the big houses might still use that day because the expirations of their positions match up better. But the good news is there’s no disadvantage for the retail trader on those days. At every expiration, you should have a heightened sense that there might be more movement at the open or close as people unwind baskets of stocks or futures. On every expiration, you should be aware, and on quadruple witching, you have to be more aware.”
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