Effect of some special events on stock price

Effect of some special events on Stock Price
Effect of NYSE opening bell  - sample time May 2008
Opening bell dat	Ticker Symbol	Return for this symbol for that day	S&P  day	Return for this symbol  (2 weeks)	S&P around that day (2 weeks)
7 May 2008	DPS	0.011904762	-0.001427999	0.19047619	-0.000970758
8 May 2008	SON	-0.000619195	-0.012109557	-0.016038016	0.010162616
9 May 2008	CFX	-0.023809524	-0.005312511	0.133809524	0.016736193
13 May 2008	SY	0.006651147	0.001595373	0.02255133	0.002054067
14 May 2008	NX	0.063063063	0.009876982	-0.030177515	-0.00029587
15 May 2008	WRC	-0.007580291	0.002964392	0.078409091	-0.002338931
19 May 2008	CAS	-0.01653638	0.010113479	-0.012236158	-0.008446932
22  May 2008	SKH	0	-0.014128474	-0.053418803	-0.012693064
23 May 2008	HEK	0.021765417	-0.014128474	0.151069519	-0.014980853

Stock featuring in opening bell did better in 6/9 in daily return and 4/9 in 2 week
returns.

Effect of NYSE closing bell  - sample time May 2008
Closing bell date	Ticker Symbol	Return for this symbol for that day	S&P  day	Return for this symbol  (2 weeks)	S&P around that day (2 weeks)
5 May 2008	IMN	-0.00921659	-0.006881739	0.043220339	-0.006123208
7 May 2008	DIS	-0.000619195	-0.016366958	0.052471019	0.010372191
8 May 2008	MFE	0.093759702	0.000437499	0.069069069	0.016154751
12 May 2008	EQY	0.015780731	0.010796027	0.003234937	0.007023047
13 May 2008	FRT	0.007518797	0.00089006	0.00089006	0.013439101
14 May 2008	CSU	0.011015912	0.001927934	0.047272727	-0.00241977
15 May 2008	LYV	0.050558109	0.01102701	0.056028369	-0.00248155
20  May 2008	KNL	0.016430172	-0.007321919	-0.019794721	-0.02024352
21 May 2008	R	-0.036149472	-0.016427874	-0.023854703	-0.013595134
22 May 2008	SM	.000980392	0.000985023	-0.007422267	-0.012681417
29 mAY 2008	BTU	-0.019083457	0.005652643	-0.029644013	-0.009598585

Stock featuring in closing bell did better in 8/11 in daily return and 6/11 in 2
week returns.