Several stocks, such as Brinker International and Nathan's Famous, list "NA" for Price/Book ratio. Can you venture a guess as to why?

 

Ticker Name TXRH Texas Roadhouse YUM YUM! Brands DRI Darden Restaurants CBRL Cracker Barrel BLMN Bloomin' Brands CAKE The Cheesecake Factory EAT Brinker International DIN Dine Brands Global4 PLAY Dave & Buster's DENN Denny's BJRI BJ's Restaurants RUTH Ruth's Hospitality Grp5 CHUY Chuy's Holdings BH Biglari Holdings TAST Carrols Restaurant Grp NATH Nathan's Famous FRGI NDLS DFRG HABT JAX Fiesta Restaurant Grp Noodles & Company Del Frisco's Rest Grp The Habit Restaurants J. Alexander's Holdings6 Stock Market Price Capitalization ($) 78.16 100.64 108.96 156.25 22.07 38.80 42.04 84.18 40.16 19.89 37.95 21.83 25.95 601.98 7.00 72.89 9.45 5.44 7.15 10.47 9.59 ($M) 5440 30440 13359 3759 1892 1732 1571 1414 1228 1175 727 625 431 367 363 308 256 240 238 217 144 Total Enterprise Debt ($M) 1038 11383 5234 1014 2593 1385 2632 1857 1885 440 624 308 226 343 1297 154 350 296 553 186 92 Value ($M) 6115 41770 21015 5347 5775 3621 5388 3683 4553 1734 1826 1159 998 797 2366 393 996 733 787 584 325 Average: Median: P/E 173.69 19.74 18.73 16.83 17.66 17.49 10.14 17.58 10.48 26.88 14.31 14.99 77.83 18.93 35.93 14.33 32.88 78.20 35.88 26.60 18.19 Price/ Book 5.77 5.88 6.21 12.48 3.24 8.29 2.54 7.21 2.21 0.61 1.14 1.41 4.71 1.08 1.39 1.12 3.97 2.54 Enterprise Enterprise Value/ Sales 2.55 7.34 2.47 1.74 1.40 1.55 1.67 4.72 3.60 2.75 1.64 2.56 2.51 0.98 2.01 3.86 1.45 1.60 2.18 1.45 1.34 2.44 1.87 Value/ EBITDA 43.06 19.92 13.40 11.47 9.98 11.49 10.24 10.87 11.36 14.59 10.54 11.51 15.85 20.04 16.41 13.18 9.98 10.08 13.08 9.47 10.05 12.67 11.48