new accounts opened by existing Fund shareholders and their immediate family members. These have had the desired effect, with inflows reduced significantly.
By our calculations our stocks advanced about 42% last year while underlying earnings growth for our portfolio was about 23%
(1)
. The S&P 500, by comparison, gained 32.4% while underlying earnings growth was about 6%.
(2)
A significant component of equity gains for both Sequoia and the S&P Index came in the form of rising price-to-earnings ratios. Rising PEs are always helpful to returns, but over time it is sustainable earnings growth that fuels stock appreciation.
Sequoia benefited greatly from two transformative acquisitions announced in 2013: Valeants purchase of Bausch & Lomb and Advance Auto Parts purchase of General Parts International. Both deals were game changers which will significantly increase these two companies earnings beginning in 2014. While weve long been partial to companies that can grow organically, Sequoias returns have been boosted considerably by companies that may have limited organic growth opportunities but have done smart serial acquisitions, such as Valeant Pharmaceuticals and Berkshire Hathaway. Precision Castparts has been
another serial acquirer that has created great value for shareholders.
We take considerable pride in our ownership of a fine collection of businesses and are pleased to report that of our top 10 holdings at year-end, eight outperformed the S&P Index and seven delivered a total shareholder return of at least 42%. Our top performing stock for the year was also our largest holding, Valeant Pharmaceuticals. It nearly doubled in 2013, rising 96%. At year-end, Valeant constituted 16.5% of the value of the Fund.
Other large holdings that generated significant outperformance included TJX, which rose 51%; Rolls-Royce, up 51%; MasterCard, up 71%; and OReilly Automotive, which rose 44%. We have owned each of these businesses for at least six years. We think our strategy of identifying great businesses, buying their stocks when they seem mispriced, then holding them as long as management continues to execute (and the share prices dont become extremely overvalued) is working as well today as it ever has. We expect that our portfolio companies will grow earnings at a good rate in the future, but not at the 23% rate we saw in
2013.
We trimmed two large positions during 2013. Mohawk Industries rose 65% during the year and along the way we sold a bit more than half the Funds stake. While we believe Mohawk is a very well-managed company that stands to benefit greatly from a recovery of the US housing market, we felt a lot of optimism about housing had become embedded in the stock price.
We sold a large portion of our holding in Advance Auto Parts shortly after the company announced a deal to buy General Parts International, parent of Carquest stores, in the fall. The stock price understandably soared on the news as Advance bought GPI on favorable terms and should be able to harvest significant synergies out of the deal, thus accelerating its earnings growth. However, wed been concerned about poor execution in legacy Advance stores for some time and felt it prudent to reduce our holding as the stock price soared. If the company integrates GPI well and improves performance in its own stores, our sale may
turn out to be a mistake.
(1) This is a tricky number to calculate. Not all of our companies have reported 2013 earnings, nor are they all on December fiscal calendars. Importantly, Valeant and several others point investors to cash earnings that exclude non-cash charges like intangibles amortization and do not conform with Generally Accepted Accounting Principles. While were proud that our portfolio in aggregate grew non-GAAP, cash earnings by 23%, there is estimating involved on our part to derive this figure. Plus, reasonable people can disagree about the merits of non-GAAP earnings.
(2) S&P Capital IQ says non-GAAP earnings for the S&P 500 were $103.78 in 2012, will be $109.87 in 2013 and $118.63 in 2014.