SXY Chart, page-644

perhaps you're confusing no. of trades @ 39.5 with volumes traded @39.5.
This below is the last 20 trades I see at commsec and if you're looking to buy @ 39 or 39.5c it's looking tough at present. Good luck you never know someone might hit the wrong button.

	Time	Price ($)	Volume	Value ($)	Condition
1	12:08:31 PM	0.400	2	0.800
2	12:08:16 PM	0.3975	126	50.085	CXXT
3	12:07:40 PM	0.3975	4,619	1,836.053	CXXT
4	12:05:39 PM	0.3975	47	18.683	CXXT
5	12:05:37 PM	0.3975	105	41.738	CXXT
6	12:04:47 PM	0.400	6,738	2,695.200
7	12:04:40 PM	0.400	5,100	2,040.000
8	12:04:40 PM	0.400	4,420	1,768.000
9	12:04:40 PM	0.400	25,000	10,000.000
10	12:04:40 PM	0.400	15,480	6,192.000
11	12:01:41 PM	0.3975	689	273.878	CXXT
12	12:01:01 PM	0.3975	363	144.293	CXXT
13	12:01:01 PM	0.3975	4	1.590	CXXT
14	12:01:01 PM	0.3975	178	70.755	CXXT
15	12:00:28 PM	0.3975	48	19.080	CXXT
16	12:00:26 PM	0.3975	621	246.848	CXXT
17	11:58:25 AM	0.3975	79	31.403	CXXT
18	11:55:55 AM	0.400	3,854	1,541.600
19	11:55:55 AM	0.3975	380	151.050	CXXT
20	11:55:41 AM	0.3975	209	83.078	NXXT