What is the relationship between the trading frequency (implied from the last trade date) and credit rating?

Company EBIT Sales Sales Total Assets Stock Ticker Symbol Company S&P Credit Rating (Issuer credit rating) Sharehol der's Equity Current Assets Total Retained Liabilitie Earnings S Name Current Liabilities Working Capital Altman Z-Score 1 AAA MSFT Microsoft Corporatio n $333, $73,4 7,519 $141,989 $191,79 $57,055,0 $184,406,0 $88,657,00 $95,749,00 1.39 779,0 48,00 ,000 ,000 1,000 00 00 0 0 00 0 2 JNJ Johnson & AAA Johnson $174, $16,6 3,119 $63,278, 894,0 98,00 1,843 000 00 0 $111,616 $113,890, $51,237,00 $42,493,00 $8,744,000 1.18 ,000 000 0 0 3 Apple AA+ AA+ AAPL $323, 888,0 00 $69,9 16,97 $65,339, 64,00 6.763 000 0 $258,54 $14,966,0 $143,713,0 $105,392,0 $38,318,00 1.28 9,000 00 00 00 0 4 Intel A+ A+ INTC $153, $25,7 4,062 $81,038, $72,053, $56,233,0 $47,249,00 $24,754,00 $22,495,00 1.50 090,0 07,00 ,000 000 000 00 0 0 0 00 0 5 + A+ KO The Coca-cola Company $87,2 96,00 0 $11,1 86,00 0 7,040 $19,299, ,129 000 $66,012, $66,555,0 $19,240,00 $14,601,00 $4,639,000 1.57 000 00 0 0 16 BBB+ VZ Verizon Communic ations Inc. $316, 481,0 00 $28,2 4,291 $67,842, $261,88 $60,464,0 $54,594,00 $39,660,00 $14,934,00 0.66 14,00 .434 000 7,000 00 0 0 0 0 7 AT&T Inc. BBB T 0.44 $525, 761,0 00 $5,06 7,620 $179,240 $346,52 $37,457,0 $52,008,00 $63,438,00 $-11,430,0 9,000 .749 ,000 1,000 00 0 0 00 8 Tesla Inc. BB TSLA $52,1 $1,90 960,0 $22,225, 48,00 2,000 00 000 0 $29,073, $-5,399,0 $26,717,00 $14,248,00 $12,469,00 0.55 000 00 0 0 0 9 B FOUR $934,100 0.4 Shift4 Payments, Inc. $1,77 $-57,2 80,55 $459,600 $1,109,3 $-278,700 $1,033,500 $99,400 9,300 00 3 00 CCC+ AMC 10 AMC Entertainm $10,2 $-4,17 228,0 $-2,885,1 $13,134, $-5,335,3 $487,000 76.40 12.600 166 loo 600 100 $1,578,500 $-1,091,50 -1.4 Table 2: Bond Level Information Company Bond S&P Outstanding Name CUSIP bond Amount level rating Maturity Date Number of years until Maturity Coupon Rate Coupon Frequency Last Trade Price Last Trade Yield Last Trade Date 1 $520,258 5.200% $138.18 2.509% 10/05/2021 Microsoft 594918A AAA Corporation D6 06/01/20 17.6 years 39 Semi-Annu al 2 $250,000 6.730% $115.48 -.576% 10/06/2021 Johnson & Johnson 478160A AAA F1 11/15/20 2.1 years 23 Semi-Annu al 3 Apple $750,000 .477% Quarterly $100.19 | N/A 10/06/2021 037833C AA+ P3 05/11/20 0.6 years 22 Intel $800,000 0.6 years .477% $100.21 Quarterly N/A 458140B A+ C3 10/01/2021 05/11/20 22 5 $95,835 7.375% $194.73 3.644% The Coca-cola Company 10/06/2021 191216A A+ F7 07/29/20 71.9 years 93 Semi-Annu al $10,807 3.376% Semi-Annu $108.50 .959% 07/12/2021 Verizon 92343VE BBB+ Communicat B6 ions Inc. 02/15/20 3.4 years 25 al 7 AT&T Inc. $46,990 7.000% 4.335% 00206RG BBB G1 01/23/2019 10/01/20 4.0 years 25 Semi-Annu $115.31 al 8 Tesla Inc. $1,833,000 2.000% $1,256 -76.435% 10/06/2021 88160RA BB G6 05/15/20 2.6 years 24 Semi-Annu al 9 $715,000 .500% $98.21 .817% 10/08/2021 Shift4 Payments, Inc. 82452JA B C3 08/01/20 5.8 years 27 Semi-Annu al 10 10 $595,000 5.1 years 5.875% $76.38 12.228% 10/05/2021 11/15/20 26 Semi-Annu al AMC 00165CA CCC- Entertainme BO nt Holdings Inc