DSX Options History — August 2007

In August 2007, DSX traded between $21.62 and $27.10. ATM implied volatility averaged 54.6%, placing in the 70.8% IV rank vs the trailing year. The 30-day expected move averaged 15.1%. IV traded below realized volatility by 11.3% (HV 20d: 65.9%). Max pain ranged from $20.00 to $22.50. Net GEX was positive for 23 of 23 trading days. Term structure was in contango for 10 of 23 days. Put/call ratio averaged 0.33.

Notable Days

2007-08-13: Highest Volume — 19,633 contracts
2007-08-15: Largest IV spike — 23.6% change
2007-08-01: Highest IV Rank — 100.0%
2007-08-16: Largest Expected Move — 21.4%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$25.11	$21.62	$27.10	$26.65	$26.55
Max Pain	$21.85	$20.00	$22.50	$22.50	$22.50
ATM IV	54.6%	40.6%	74.6%	66.0%	40.6%
Expected Move	15.1%	11.6%	21.4%	18.9%	11.6%
HV 20d	65.9%	55.6%	75.1%	55.7%	73.9%
HV 60d	50.9%	43.8%	57.4%	43.9%	56.4%
IV Rank	70.8%	39.4%	100.0%	100.0%	39.4%
IV Percentile	91.9%	79.6%	100.0%	100.0%	79.6%
Term Structure	-2.7%	-16.2%	5.5%	-16.1%	5.5%
VWIV	54.9%	42.3%	81.3%	70.2%	44.4%
Skew 25d	2.4%	-15.1%	7.7%	7.3%	-0.0%
Skew 10d	10.6%	-16.7%	35.1%	21.8%	13.2%
Call IV 25d	53.1%	41.5%	78.3%	61.9%	41.5%
Put IV 25d	55.4%	41.5%	86.0%	69.2%	41.5%
Bid-Ask Spread %	28.87	16.60	49.92	49.85	28.68
Gamma HHI	0.34	0.29	0.44	0.36	0.37
Net GEX	363.7K	90.9K	494.1K	424.2K	494.1K
Net DEX	-17.5M	-27.7M	-3.6M	-23.4M	-22.7M
Net VEX	-81.4K	-85.5K	-75.1K	-80.9K	-80.4K
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.33	0.02	0.93	0.49	0.72
Total Volume	2,485.739	726	19,633	2,674	1,294
Total OI	26,036	22,272	28,342	25,859	25,936

Daily Data (23 trading days)

Date	Price	Max Pain	ATM IV	Exp Move	HV 20d	IV Rank	VWIV	Skew 25d	Term Str	GEX	DEX	VEX	P/C	Spread %	Call Wall	Put Wall	Call Vol	Put Vol	Call OI	Put OI
2007-08-01	$26.65	$22.50	66.0%	18.9%	55.7%	100.0%	70.2%	7.3%	-16.1%	424.2K	-23.4M	-80.9K	0.49	49.85	N/A	N/A	1,790	884	18,189	7,670
2007-08-02	$27.06	$22.50	53.8%	15.4%	55.6%	74.2%	51.9%	4.7%	-6.1%	487.4K	-25.5M	-82.7K	0.16	27.26	N/A	N/A	1,484	240	18,241	8,111
2007-08-03	$26.16	$22.50	55.4%	15.9%	57.3%	77.6%	60.0%	-15.1%	-16.2%	441.3K	-22.9M	-83.2K	0.04	27.57	N/A	N/A	1,179	52	18,700	8,089
2007-08-06	$25.15	$20.00	60.7%	15.1%	57.2%	88.8%	53.3%	3.6%	-6.3%	390.5K	-18.5M	-83.6K	0.34	49.92	N/A	N/A	1,762	597	19,019	8,117
2007-08-07	$26.51	$20.00	63.1%	15.2%	60.0%	93.9%	50.6%	6.4%	-8.6%	451.1K	-25.2M	-84.9K	0.21	34.22	N/A	N/A	1,085	232	19,377	8,318
2007-08-08	$27.10	$20.00	57.3%	13.7%	59.0%	81.5%	48.3%	1.9%	-1.4%	477.2K	-27.7M	-83.1K	0.26	34.48	N/A	N/A	1,231	322	19,338	8,457
2007-08-09	$25.49	$20.00	58.9%	15.0%	63.2%	85.0%	55.8%	5.8%	-4.8%	387.7K	-21.3M	-84.6K	0.25	39.67	N/A	N/A	1,630	407	19,685	8,470
2007-08-10	$24.83	$20.00	65.0%	16.1%	63.7%	97.7%	58.3%	5.6%	-4.3%	339.1K	-17.0M	-85.5K	0.31	39.05	N/A	N/A	1,645	518	19,287	8,610
2007-08-13	$25.87	$20.00	60.2%	16.1%	64.0%	87.7%	81.3%	0.5%	-4.0%	356.3K	-22.6M	-84.4K	0.02	29.11	N/A	N/A	19,310	323	19,786	8,556
2007-08-14	$24.64	$22.50	52.6%	16.4%	62.7%	71.6%	57.4%	0.2%	-4.8%	201.4K	-13.1M	-79.4K	0.31	26.79	N/A	N/A	806	253	16,937	8,544
2007-08-15	$22.91	$22.50	65.0%	17.3%	62.9%	97.7%	61.3%	-1.6%	-5.0%	123.7K	-6.6M	-75.1K	0.53	24.85	N/A	N/A	1,495	795	17,089	8,588
2007-08-16	$21.62	$22.50	74.6%	21.4%	63.1%	100.0%	79.3%	7.7%	-8.4%	90.9K	-3.6M	-75.8K	0.60	41.28	N/A	N/A	1,714	1,029	17,576	8,730
2007-08-17	$23.02	$22.50	66.7%	19.1%	68.8%	86.0%	67.5%	2.9%	-5.9%	146.3K	-8.4M	-80.8K	0.53	25.79	N/A	N/A	1,437	768	17,813	8,936
2007-08-20	$23.08	$22.50	58.7%	16.8%	67.7%	71.6%	57.0%	5.1%	1.8%	261.2K	-9.4M	-77.0K	0.24	27.73	N/A	N/A	1,935	459	14,948	7,324
2007-08-21	$23.34	$22.50	50.0%	14.3%	67.0%	56.1%	50.1%	2.3%	3.2%	311.4K	-10.3M	-78.6K	0.24	19.88	N/A	N/A	919	220	15,775	7,621
2007-08-22	$25.48	$22.50	46.2%	13.2%	75.1%	49.4%	46.6%	2.3%	2.2%	414.2K	-18.6M	-82.5K	0.16	17.34	N/A	N/A	2,540	398	16,308	7,750
2007-08-23	$25.22	$22.50	45.2%	13.0%	73.1%	47.6%	46.5%	1.3%	1.4%	389.7K	-16.8M	-81.9K	0.36	16.60	N/A	N/A	1,391	504	16,704	7,896
2007-08-24	$25.50	$22.50	41.9%	12.0%	73.2%	41.8%	42.6%	5.7%	4.0%	374.4K	-17.8M	-81.0K	0.17	18.69	N/A	N/A	621	105	17,314	7,950
2007-08-27	$25.36	$22.50	43.3%	12.4%	71.5%	44.1%	47.3%	0.1%	2.4%	454.6K	-18.4M	-82.8K	0.93	20.08	N/A	N/A	404	375	17,497	7,998
2007-08-28	$24.13	$22.50	44.4%	12.7%	72.2%	46.2%	46.1%	-0.3%	3.7%	413.4K	-12.9M	-79.8K	0.49	20.56	N/A	N/A	535	260	17,657	8,063
2007-08-29	$25.77	$22.50	44.4%	12.7%	74.7%	46.2%	44.9%	5.3%	2.9%	464.2K	-19.6M	-82.7K	0.12	18.63	N/A	N/A	906	105	17,721	8,205
2007-08-30	$26.09	$22.50	42.9%	12.3%	74.6%	43.4%	42.3%	2.6%	4.0%	471.3K	-21.1M	-81.1K	0.08	26.10	N/A	N/A	1,128	85	17,673	8,255
2007-08-31	$26.55	$22.50	40.6%	11.6%	73.9%	39.4%	44.4%	-0.0%	5.5%	494.1K	-22.7M	-80.4K	0.72	28.68	N/A	N/A	752	542	17,679	8,257