Hi Perpa!
So, here is what I did:Thank you so much for your help and suggestions. I did manage to resolve all of my issues - not using your functions, but I think working through your suggestions really helped me to clarify what I needed and how to go about it.
Example Chart
[TABLE="width: 260"]
<tbody>[TR]
[TD="class: xl32, width: 65"]Date[/TD]
[TD="class: xl33, width: 65"]High[/TD]
[TD="class: xl33, width: 65"]Low[/TD]
[TD="class: xl34, width: 65"]Close[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]14-Jun[/TD]
[TD="class: xl24, width: 65"]3,028.21[/TD]
[TD="class: xl24, width: 65"]3,028.21[/TD]
[TD="class: xl36, width: 65"]3,028.21[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]13-Jun[/TD]
[TD="class: xl24, width: 65"]3,130.43[/TD]
[TD="class: xl24, width: 65"]3,130.43[/TD]
[TD="class: xl36, width: 65"]3,130.43[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]12-Jun[/TD]
[TD="class: xl24, width: 65"]3,121.29[/TD]
[TD="class: xl24, width: 65"]3,121.29[/TD]
[TD="class: xl36, width: 65"]3,121.29[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]11-Jun[/TD]
[TD="class: xl24, width: 65"]3,117.62[/TD]
[TD="class: xl24, width: 65"]3,117.62[/TD]
[TD="class: xl36, width: 65"]3,117.62[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]10-Jun[/TD]
[TD="class: xl24, width: 65"]3,151.69[/TD]
[TD="class: xl24, width: 65"]3,151.69[/TD]
[TD="class: xl36, width: 65"]3,151.69[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]9-Jun[/TD]
[TD="class: xl24, width: 65"]3,142.52[/TD]
[TD="class: xl24, width: 65"]3,142.52[/TD]
[TD="class: xl36, width: 65"]3,142.52[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]8-Jun[/TD]
[TD="class: xl24, width: 65"]3,112.99[/TD]
[TD="class: xl24, width: 65"]3,112.99[/TD]
[TD="class: xl36, width: 65"]3,112.99[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]7-Jun[/TD]
[TD="class: xl24, width: 65"]3,064.03[/TD]
[TD="class: xl24, width: 65"]3,064.03[/TD]
[TD="class: xl36, width: 65"]3,064.03[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]6-Jun[/TD]
[TD="class: xl24, width: 65"]3,054.34[/TD]
[TD="class: xl24, width: 65"]3,054.34[/TD]
[TD="class: xl36, width: 65"]3,054.34[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]5-Jun[/TD]
[TD="class: xl24, width: 65"]3,060.86[/TD]
[TD="class: xl24, width: 65"]3,060.86[/TD]
[TD="class: xl36, width: 65"]3,060.86[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]4-Jun[/TD]
[TD="class: xl24, width: 65"]3,039.19[/TD]
[TD="class: xl24, width: 65"]3,039.19[/TD]
[TD="class: xl36, width: 65"]3,039.19[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]3-Jun[/TD]
[TD="class: xl24, width: 65"]2,942.09[/TD]
[TD="class: xl24, width: 65"]2,942.09[/TD]
[TD="class: xl36, width: 65"]2,942.09[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]2-Jun[/TD]
[TD="class: xl24, width: 65"]2,924.23[/TD]
[TD="class: xl24, width: 65"]2,924.23[/TD]
[TD="class: xl36, width: 65"]2,924.23[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]1-Jun[/TD]
[TD="class: xl24, width: 65"]2,911.98[/TD]
[TD="class: xl24, width: 65"]2,911.98[/TD]
[TD="class: xl36, width: 65"]2,911.98[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]31-May[/TD]
[TD="class: xl24, width: 65"]2,871.57[/TD]
[TD="class: xl24, width: 65"]2,871.57[/TD]
[TD="class: xl36, width: 65"]2,871.57[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]30-May[/TD]
[TD="class: xl24, width: 65"]2,909.36[/TD]
[TD="class: xl24, width: 65"]2,909.36[/TD]
[TD="class: xl36, width: 65"]2,909.36[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]29-May[/TD]
[TD="class: xl24, width: 65"]2,890.35[/TD]
[TD="class: xl24, width: 65"]2,890.35[/TD]
[TD="class: xl36, width: 65"]2,890.35[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]28-May[/TD]
[TD="class: xl24, width: 65"]2,962.28[/TD]
[TD="class: xl24, width: 65"]2,962.28[/TD]
[TD="class: xl36, width: 65"]2,962.28[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]27-May[/TD]
[TD="class: xl24, width: 65"]2,953.28[/TD]
[TD="class: xl24, width: 65"]2,953.28[/TD]
[TD="class: xl36, width: 65"]2,953.28[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]26-May[/TD]
[TD="class: xl24, width: 65"]3,004.93[/TD]
[TD="class: xl24, width: 65"]3,004.93[/TD]
[TD="class: xl36, width: 65"]3,004.93[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]25-May[/TD]
[TD="class: xl24, width: 65"]3,044.10[/TD]
[TD="class: xl24, width: 65"]3,044.10[/TD]
[TD="class: xl36, width: 65"]3,044.10[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]24-May[/TD]
[TD="class: xl24, width: 65"]3,004.87[/TD]
[TD="class: xl24, width: 65"]3,004.87[/TD]
[TD="class: xl36, width: 65"]3,004.87[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]23-May[/TD]
[TD="class: xl24, width: 65"]2,986.73[/TD]
[TD="class: xl24, width: 65"]2,986.73[/TD]
[TD="class: xl36, width: 65"]2,986.73[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]22-May[/TD]
[TD="class: xl24, width: 65"]3,042.42[/TD]
[TD="class: xl24, width: 65"]3,042.42[/TD]
[TD="class: xl36, width: 65"]3,042.42[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]21-May[/TD]
[TD="class: xl24, width: 65"]3,051.23[/TD]
[TD="class: xl24, width: 65"]3,051.23[/TD]
[TD="class: xl36, width: 65"]3,051.23[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]20-May[/TD]
[TD="class: xl24, width: 65"]3,043.10[/TD]
[TD="class: xl24, width: 65"]3,043.10[/TD]
[TD="class: xl36, width: 65"]3,043.10[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]19-May[/TD]
[TD="class: xl24, width: 65"]3,062.05[/TD]
[TD="class: xl24, width: 65"]3,062.05[/TD]
[TD="class: xl36, width: 65"]3,062.05[/TD]
[/TR]
[TR]
[TD="class: xl35, align: right"]18-May[/TD]
[TD="class: xl24, width: 65"]3,067.21[/TD]
[TD="class: xl24, width: 65"]3,067.21[/TD]
[TD="class: xl36, width: 65"]3,067.21[/TD]
[/TR]
[TR]
[TD="class: xl37, align: right"]17-May[/TD]
[TD="class: xl25, width: 65"]3,091.98[/TD]
[TD="class: xl25, width: 65"]3,091.98[/TD]
[TD="class: xl38, width: 65"]3,091.98[/TD]
[/TR]
[TR]
[TD="class: xl39"][/TD]
[TD="class: xl26, width: 65"][/TD]
[TD="class: xl26, width: 65"][/TD]
[TD="class: xl40, width: 65"][/TD]
[/TR]
[TR]
[TD="class: xl41"][/TD]
[TD="class: xl27, width: 65"][/TD]
[TD="class: xl27, width: 65"][/TD]
[TD="class: xl42, width: 65"][/TD]
[/TR]
[TR]
[TD="class: xl28"]30 Day Low[/TD]
[TD="class: xl44, width: 65"][/TD]
[TD="class: xl46, align: right"]15[/TD]
[TD="class: xl29, width: 65"][/TD]
[/TR]
[TR]
[TD="class: xl43, align: right"]31-May[/TD]
[TD="class: xl30, width: 65"][/TD]
[TD="class: xl45, width: 65"]2,871.57[/TD]
[TD="class: xl31, width: 65"][/TD]
[/TR]
</tbody>[/TABLE]
So I used the Min function [=MIN(C2:C30)] to find the 30 day low point value.
Then I used the MATCH function [=MATCH(C34,C2:C30,0)] to give me the row number of the cell containing the 30 day low. In the example, this is the 15.
Finally, I used the Index function [=INDEX(A2:A30,C33,1)] to give me the date of the low. This function found the entry in the Date column in the same row as the 30 day low.
So thank you for your help. I hope this helps someone else too!
VillageGirl