How can I upgrade my subscription to more years of history or to a different payment plan?

If you are subscribed to a premium data feed, and want to upgrade to more history or change your subscription term (e.g. monthly payments to annual payments), please email us for assistance. Please tell us which data feed you'd like to upgrade, as well as how many years of history you'd like to upgrade to and/or the subscription term you'd like to switch to.

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