(40 points) Recently, stock PLTR has been touted on several newsgroups with comments such as: TUIG: "PLTR rocks. Buy before it takes off!" Or MS: "PLTRI!!!! I am in. Join in the gain. Perform your Due Diligence." Here are STSX returns and the S&P 500 excess returns for 3 days before and after the date on which the comments above were posted. Assume that the risk-free rate is 3% and PLTR's beta is 1.1. Realized Day RS&P500 Rf E(RPLTR) by CAPM ARPLTR RPLTR 3 4.00% 1.00% % % 2 4.20% 1.00% % % 1 3.00% 0.00% % % 0 5.20% 2.00% % % -1 5.90% 2.00% % % -2 6.00% 1.90% % % -3 5.10% 1.50% % % a. Compute PLTR's required returns by CAPM for each day from 3 to +3. Show your work for at least one day's calculation, please fill the table above. Keep two decimal places. (7 points) Toolbar navigation BIUS A b. Compute the daily abnormal returns (AR) to PLTR for each day from 3 to 3. Show your work for at least one day's calculation, please fill the table above. Keep two decimal places. (7 points) C. Compute the cumulative abnormal returns (CAR), that is the cumulative effect of the daily abnormal returns for PLTR, for the window from Day @ to Day +3 and from Day -3 to Day -1. Keep two decimal places. (8 points) CAR [0;+3] = CAR [-3; -1] = d. How do you interpret these figures in light of TUIG and MS's comments? Comment on the patterns in terms of the efficient market hypothesis. (10 points) e. Do you believe in market efficiency yourself? Provide two pieces of evidence (use observations from the actual market, not from this example) to support your conclusion. (8 points) (40 points) Recently, stock PLTR has been touted on several newsgroups with comments such as: TUIG: "PLTR rocks. Buy before it takes off!" Or MS: "PLTRI!!!! I am in. Join in the gain. Perform your Due Diligence." Here are STSX returns and the S&P 500 excess returns for 3 days before and after the date on which the comments above were posted. Assume that the risk-free rate is 3% and PLTR's beta is 1.1. Realized Day RS&P500 Rf E(RPLTR) by CAPM ARPLTR RPLTR 3 4.00% 1.00% % % 2 4.20% 1.00% % % 1 3.00% 0.00% % % 0 5.20% 2.00% % % -1 5.90% 2.00% % % -2 6.00% 1.90% % % -3 5.10% 1.50% % % a. Compute PLTR's required returns by CAPM for each day from 3 to +3. Show your work for at least one day's calculation, please fill the table above. Keep two decimal places. (7 points) Toolbar navigation BIUS A b. Compute the daily abnormal returns (AR) to PLTR for each day from 3 to 3. Show your work for at least one day's calculation, please fill the table above. Keep two decimal places. (7 points) C. Compute the cumulative abnormal returns (CAR), that is the cumulative effect of the daily abnormal returns for PLTR, for the window from Day @ to Day +3 and from Day -3 to Day -1. Keep two decimal places. (8 points) CAR [0;+3] = CAR [-3; -1] = d. How do you interpret these figures in light of TUIG and MS's comments? Comment on the patterns in terms of the efficient market hypothesis. (10 points) e. Do you believe in market efficiency yourself? Provide two pieces of evidence (use observations from the actual market, not from this example) to support your conclusion. (8 points)
