Closing Market Price and NAV History

Date	Market Price1	Net Asset Value2	Bid/Ask Midpoint	Volume1	Net Assets2
10/31/2019	$31.38	$31.36	$31.37	114,361	$1,723,485,158
10/30/2019	$31.53	$31.53	$31.53	136,503	$1,732,384,195
10/29/2019	$31.63	$31.61	$31.62	106,606	$1,735,491,298
10/28/2019	$31.63	$31.62	$31.61	134,001	$1,734,091,345
10/25/2019	$31.45	$31.47	$31.47	132,515	$1,726,145,647
10/24/2019	$31.31	$31.32	$31.32	218,682	$1,716,413,008
10/23/2019	$31.53	$31.52	$31.52	123,503	$1,722,490,987
10/22/2019	$31.46	$31.44	$31.45	128,186	$1,715,276,815
10/21/2019	$31.30	$31.31	$31.31	112,176	$1,707,843,302
10/18/2019	$31.10	$31.08	$31.08	147,365	$1,695,169,763
10/17/2019	$30.98	$30.96	$30.97	221,226	$1,687,278,573
10/16/2019	$30.94	$30.93	$30.94	108,273	$1,685,543,320
10/15/2019	$31.06	$31.04	$31.04	223,199	$1,691,750,951
10/14/2019	$30.73	$30.74	$30.74	138,208	$1,675,280,958
10/11/2019	$30.76	$30.78	$30.77	257,174	$1,677,518,197
10/10/2019	$30.48	$30.48	$30.48	144,503	$1,660,988,900
10/9/2019	$30.14	$30.15	$30.15	300,608	$1,643,058,911
10/8/2019	$29.94	$29.92	$29.93	178,680	$1,627,827,520
10/7/2019	$30.39	$30.38	$30.38	128,545	$1,652,738,253
10/4/2019	$30.55	$30.55	$30.54	123,649	$1,661,657,597
10/3/2019	$30.15	$30.17	$30.17	227,390	$1,634,998,169
10/2/2019	$30.01	$29.98	$29.99	143,787	$1,625,135,186
10/1/2019	$30.59	$30.57	$30.58	241,639	$1,655,493,216