Correlations for all pairs of data series (method=pearson)
	Apple	Volume	Microsoft	NASDAQ	Inflation	Cons_confidence	Fed_funds_rate
Apple	1	0.418	0.323	0.129	-0.163	-0.59	-0.291
Volume	0.418	1	0.215	0.171	0.297	-0.13	0.226
Microsoft	0.323	0.215	1	0.768	0.322	0.335	0.438
NASDAQ	0.129	0.171	0.768	1	0.36	0.535	0.649
Inflation	-0.163	0.297	0.322	0.36	1	0.436	0.548
Cons_confidence	-0.59	-0.13	0.335	0.535	0.436	1	0.813
Fed_funds_rate	-0.291	0.226	0.438	0.649	0.548	0.813	1

Correlations for all pairs of data series with p-values
pair	Pearson r	Spearman rho	Kendall tau
Apple;Volume	0.4177	0.657	0.4509
p-value	(0)	(0)	(0)
Apple;Microsoft	0.3235	0.4806	0.3489
p-value	(2e-04)	(0)	(0)
Apple;NASDAQ	0.129	0.4773	0.3665
p-value	(0.1436)	(0)	(0)
Apple;Inflation	-0.163	0.0099	0.0283
p-value	(0.0638)	(0.9113)	(0.6334)
Apple;Cons_confidence	-0.5898	-0.4087	-0.2318
p-value	(0)	(0)	(1e-04)
Apple;Fed_funds_rate	-0.2913	-0.1938	-0.1041
p-value	(8e-04)	(0.0272)	(0.0806)
Volume;Microsoft	0.215	0.3204	0.22
p-value	(0.014)	(2e-04)	(2e-04)
Volume;NASDAQ	0.171	0.4616	0.3269
p-value	(0.0517)	(0)	(0)
Volume;Inflation	0.2967	0.3365	0.2191
p-value	(6e-04)	(1e-04)	(2e-04)
Volume;Cons_confidence	-0.13	-0.0633	-0.0344
p-value	(0.1404)	(0.4745)	(0.5622)
Volume;Fed_funds_rate	0.2256	0.2268	0.1344
p-value	(0.0099)	(0.0095)	(0.0241)
Microsoft;NASDAQ	0.768	0.8016	0.6273
p-value	(0)	(0)	(0)
Microsoft;Inflation	0.3221	0.3425	0.2363
p-value	(2e-04)	(1e-04)	(1e-04)
Microsoft;Cons_confidence	0.3349	0.2753	0.2045
p-value	(1e-04)	(0.0015)	(6e-04)
Microsoft;Fed_funds_rate	0.4382	0.4049	0.3006
p-value	(0)	(0)	(0)
NASDAQ;Inflation	0.3601	0.494	0.3282
p-value	(0)	(0)	(0)
NASDAQ;Cons_confidence	0.5349	0.4205	0.3008
p-value	(0)	(0)	(0)
NASDAQ;Fed_funds_rate	0.6486	0.6095	0.4338
p-value	(0)	(0)	(0)
Inflation;Cons_confidence	0.4361	0.3664	0.2466
p-value	(0)	(0)	(0)
Inflation;Fed_funds_rate	0.548	0.6108	0.4216
p-value	(0)	(0)	(0)
Cons_confidence;Fed_funds_rate	0.8133	0.8401	0.6546
p-value	(0)	(0)	(0)