# 株式買取請求権と株価——Verition Partners v. Aruba Networks, 2019 Del. LEXIS 197 (Del. Apr. 16, 2019)

In this statutory appraisal case, the Court of Chancery found that the fair value of Aruba Networks, Inc., as defined by 8 Del. C. § 262, was $17.13 per share, which was the thirty-day average market price at which its shares traded before the media reported news of the transaction that gave rise to the appellants’ appraisal rights. … Because the Court of Chancery’s decision to use Aruba’s stock price instead of the deal price minus synergies was rooted in an erroneous factual finding that lacked record support, we answer that in the positive and reverse the Court of Chancery’s judgment. On remand, the Court of Chancery shall enter a final judgment for the petitioners awarding them$19.10 per share, which reflects the deal price minus the portion of synergies left with the seller as estimated by the respondent in this case, Aruba. …

Under the semi-strong form of the efficient capital markets hypothesis, the unaffected market price is not assumed to factor in nonpublic information. In this case, however, HP had signed a confidentiality agreement, done exclusive due diligence, gotten access to material nonpublic information, and had a much sharper incentive to engage in price discovery than an ordinary trader because it was seeking to acquire all shares. Moreover, its information base was more current as of the time of the deal than the trading price used by the Vice Chancellor. Compounding these issues was the reality that Aruba was set to release strong earnings that HP knew about in the final negotiations, but that the market did not. As previously noted, Aruba’s stock price jumped 9.7% once those earnings were finally reported to the public. None of these issues were illuminated in the traditional way, and none of them were discussed by the Court of Chancery in a reasoned way in giving exclusive weight to a prior trading price that was \$7.54 below what HP agreed to pay, and well below what Aruba had previously argued was fair value. (footnotes omitted)

# Buying High and Selling Low: Stock Repurchases and Persistent Asymmetric Information

We investigate the consequences of allowing for repeated capital market transactions in a model with asymmetric information between a firm and its investors. All firms in the model possess a profitable project that they need to raise cash to undertake. However, equilibria exist in which firms return cash to investors via share repurchases. Consistent with managerial accounts, some firms directly profit from repurchasing their stock. The ultimate source of these profits is that other firms buy “high” in order to improve the terms of subsequent stock issues, which is again consistent with empirical evidence. Only equilibria with repurchases satisfy a mild refinement. Repurchases lower social welfare by reducing the fraction of firms that invest, even though repurchasing itself carries no deadweight cost. Our model generates a number of empirical predictions.

via Harvard