
I got the following results:
QQQ: 8 out of 16 successful; average return of +0.68 percent.
SMH: 9 out of 11 successful; average return of +1.72 percent.
SPY: 29 out 41 successful; average return of +0.34 percent.
^NDX (since 1988): 24 out of 60 successful; average return of +0.10
percent.
^SPX (since 1988): 33 out of 60 successful; average return of +0.11
percent.
^RUT (since 1987): 10 out of 62 successful; average return of –0.63
percent.
So, in fact, whether bull or bear market, people tend to avoid buying in
the broader markets on the last day of the quarter. Except, as could be ex-
pected, on the Russell 2000, where the illiquidity of the stocks that make up
the index are more prone to manipulation. The results suggest a possible
pairs trade going into last day of quarter: Short SMH and go long IWV, the
iShares ETF for the Russell 2000.
THE END OF THE MONTH PANIC
At the end of the month, every basis point counts for fund managers.
Bonuses might be dependent on the monthly result, Sharpe ratios are being
calculated, track records are being dressed up and paraded to investors. If
the market starts to slide mid-day then trouble is potentially brewing for the
portfolio manager whose career is hanging on every tick. Consequently, if
things look like they are going from bad to worse, the fund manager might
irrationally sell into that panic, knowing that he can just as easily buy back
his shares the next day.
Such observation suggests the following pattern:
• Buy the close when the last day of the month is down 1 percent.
• Sell at the open on the first day of the month.
Example: QQQ, 3/31/2003
The last day of March 2003, an otherwise great month for the markets, was
a down day for QQQ—they closed at 25.25. The next day, when the dust
cleared and portfolio managers realized they had made the mistake of a life-
time, they drove up the market pre-open so that it ended up opening at
25.44. As you can see in Figure 12.1, selling then resulted in a profit of 0.75
percent. (Also see Tables 12.1 and 12.2, page 144.)
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