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It's hard to argue with the kinds of results Eli Lilly (NYSE: LLY) has produced over the past five years. Let's figure out how Lilly could perform through the end of the decade, and decide whether it's still worth investing in the stock.

Eli Lilly and Company’s LLY shares dipped almost 5% on Monday after rival Novo Nordisk NVO announced disappointing data from a late-stage study on next-generation obesity drug, CagriSema. Top-line data from the phase III REDEFINE 2 study on Novo Nordisk’s CagriSema showed that treatment with the drug led to a weight loss of 15.

Eli Lilly (NYSE: LLY) stock has had plenty of good trading sessions over the past year or so, but Monday's sure wasn't among them. The storied pharmaceutical company's shares lost nearly 5% of their value during the big market sell-off that day,