Baralonco Ltd: insider trades

10% owner at Iridium Communications Inc. 93 open-market purchases and no sales not made under a pre-set plan, reported from December 7, 2011 to November 26, 2012.

Would copying Baralonco Ltd’s purchases have beaten the S&P 500?

Buying each purchase the day after it was reported, an equal amount each, and holding it 12 months or until they reported a sale would have turned $10,000 on December 8, 2011 into $10,992 by November 2, 2026, +0.6% a year. The copy held shares only 13% of the time, so the fair comparison is the S&P 500 on those same days with Treasury bills otherwise: $19,723, +4.7% a year (the S&P 500 held throughout made $79,250, +14.9% a year). Beta against the index was 0.06. Twelve months after each report, the average purchase was −33.1% against the S&P 500 (median −30.9%), and 0% beat it: too few years of purchases to tell skill from luck. Measured from the trade date, the insider’s own timing, the average was −29.4%.

With 296 insiders tested, some will look skilled or unskilled by chance alone: when we replaced each insider’s stocks with random companies bought on the same days, about 5.7 cleared the bar ahead and 23.3 behind. One record on its own proves little.

Copying Baralonco LtdS&P 500, same days investedS&P 500, held throughout $10,000 copying Baralonco Ltd’s open-market purchases from December 8, 2011, before costs and taxes, marked weekly. Each purchase gets the same starting stake, bought at the close of the first trading day after the report and sold 12 months later or the day after a reported sale of that stock; uninvested money earns the Treasury bill rate. “Same days invested” holds the S&P 500 only on the days the copy held shares, Treasury bills otherwise.

Return a year, copying: +0.6%
S&P 500, same days invested: +4.7% (held throughout +14.9%)
Time in shares: 13%
Sharpe ratio (S&P 500): −0.01 (0.82)
Biggest drop (S&P 500): −43% (−34%)
Market sensitivity (beta): 0.06
Purchases copied: 93

Trade by trade

Baralonco Ltd: trades against the S&P 500 afterwards
Measured	Trades counted	Average vs S&P 500	Median	Went the right way	Years	t-statistic	p-value	Evidence
Purchases, 3 months after the report	93	−1.5%	−1.8%	48%	2	—	—	Not enough years
Purchases, 6 months after the report	93	−1.7%	−1.2%	47%	2	—	—	Not enough years
Purchases, 12 months after the report	93	−33.1%	−30.9%	0%	2	—	—	Not enough years
Purchases, 12 months after the trade	93	−29.4%	−30.9%	0%	2	—	—	Not enough years
Sales, 3 months after the report	0	—	—	—	—	—	—	Not enough years
Sales, 12 months after the report	0	—	—	—	—	—	—	Not enough years
Sales, 12 months after the trade	0	—	—	—	—	—	—	Not enough years

“Average vs S&P 500” is the stock’s return including dividends minus the index’s over the same dates, from the close on the first trading day after the report, or from the close on the trade date. Only windows that have finished are counted. For sales, a negative figure means the stock lagged after it was sold, so selling was the right call (green). “Went the right way” is the share of purchases that beat the index, or of sales that trailed it. The t-statistic uses one average per year of reports, because one person’s trades bunch into the same stock and weeks, and needs trades in at least four different years; the p-value comes from the t distribution with that number of years (with four years, a t of 2 has p = 0.14). “Some evidence” means p under 5%, “strong evidence” p under 1% over at least six years.

Companies traded

Company	Title on the latest filing	Purchases	Sales	First report	Latest report
Iridium Communications Inc. IRDM	—	93	0	December 7, 2011	November 26, 2012

Trades and what followed

Moves are against the S&P 500; green means the trade went the insider’s way.

Reported	Traded	Company	Trade	Value	3 months after report	12 months after report	12 months after trade
November 26, 2012	November 21, 2012	IRDM	Purchase	$33,630	−7.8%	−36.0%	−30.3%
November 26, 2012	November 21, 2012	IRDM	Purchase	$33,060	−7.8%	−36.0%	−30.3%
November 26, 2012	November 21, 2012	IRDM	Purchase	$31,920	−7.8%	−36.0%	−30.3%
November 26, 2012	November 21, 2012	IRDM	Purchase	$30,780	−7.8%	−36.0%	−30.3%
November 26, 2012	November 21, 2012	IRDM	Purchase	$25,661	−7.8%	−36.0%	−30.3%
November 26, 2012	November 21, 2012	IRDM	Purchase	$23,940	−7.8%	−36.0%	−30.3%
November 26, 2012	November 21, 2012	IRDM	Purchase	$23,370	−7.8%	−36.0%	−30.3%
November 26, 2012	November 21, 2012	IRDM	Purchase	$21,478	−7.8%	−36.0%	−30.3%
November 23, 2012	November 20, 2012	IRDM	Purchase	$127,758	−2.4%	−35.6%	−27.7%
November 23, 2012	November 20, 2012	IRDM	Purchase	$37,026	−2.4%	−35.6%	−27.7%
November 23, 2012	November 20, 2012	IRDM	Purchase	$31,977	−2.4%	−35.6%	−27.7%
November 23, 2012	November 20, 2012	IRDM	Purchase	$25,245	−2.4%	−35.6%	−27.7%
November 23, 2012	November 20, 2012	IRDM	Purchase	$19,550	−2.4%	−35.6%	−27.7%
November 23, 2012	November 20, 2012	IRDM	Purchase	$17,918	−2.4%	−35.6%	−27.7%
November 23, 2012	November 20, 2012	IRDM	Purchase	$16,759	−2.4%	−35.6%	−27.7%
November 20, 2012	November 16, 2012	IRDM	Purchase	$39,912	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$37,400	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$34,701	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$29,700	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$26,005	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$25,012	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$19,361	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$17,792	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$17,748	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$17,221	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$16,607	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$15,793	+6.1%	−30.3%	−30.9%
November 20, 2012	November 16, 2012	IRDM	Purchase	$13,895	+6.1%	−30.3%	−30.9%
November 20, 2012	November 7, 2012	IRDM	Purchase	$26,634	+6.1%	−30.3%	−39.4%
November 9, 2012	November 7, 2012	IRDM	Purchase	$20,685	+0.3%	−43.5%	−39.4%
November 8, 2012	November 6, 2012	IRDM	Purchase	$32,869	−1.8%	−44.6%	−39.5%
November 8, 2012	November 6, 2012	IRDM	Purchase	$31,322	−1.8%	−44.6%	−39.5%
November 8, 2012	November 6, 2012	IRDM	Purchase	$29,720	−1.8%	−44.6%	−39.5%
November 8, 2012	November 6, 2012	IRDM	Purchase	$29,037	−1.8%	−44.6%	−39.5%
November 8, 2012	November 6, 2012	IRDM	Purchase	$23,143	−1.8%	−44.6%	−39.5%
November 8, 2012	November 6, 2012	IRDM	Purchase	$17,965	−1.8%	−44.6%	−39.5%
November 8, 2012	November 6, 2012	IRDM	Purchase	$16,579	−1.8%	−44.6%	−39.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$28,704	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$25,101	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$24,310	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$24,245	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$22,880	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$22,075	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$21,416	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$21,175	−13.2%	−23.7%	−22.5%
August 10, 2012	August 8, 2012	IRDM	Purchase	$20,242	−13.2%	−23.7%	−22.5%
August 9, 2012	August 7, 2012	IRDM	Purchase	$56,569	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$53,875	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$40,479	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$40,259	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$37,895	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$35,960	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$34,467	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$31,303	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$30,016	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$29,831	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$29,401	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$28,721	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$28,019	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$27,406	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$26,788	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$25,618	−12.3%	−23.6%	−20.9%
August 9, 2012	August 7, 2012	IRDM	Purchase	$22,902	−12.3%	−23.6%	−20.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$34,612	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$30,141	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$29,634	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$28,459	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$28,312	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$26,998	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$25,691	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$25,383	+2.6%	−43.4%	−30.9%
December 12, 2011	December 8, 2011	IRDM	Purchase	$25,321	+2.6%	−43.4%	−30.9%
December 9, 2011	December 7, 2011	IRDM	Purchase	$158,249	+3.9%	−40.3%	−34.1%
December 9, 2011	December 7, 2011	IRDM	Purchase	$42,728	+3.9%	−40.3%	−34.1%
December 9, 2011	December 7, 2011	IRDM	Purchase	$40,439	+3.9%	−40.3%	−34.1%
December 9, 2011	December 7, 2011	IRDM	Purchase	$30,702	+3.9%	−40.3%	−34.1%
December 9, 2011	December 7, 2011	IRDM	Purchase	$28,938	+3.9%	−40.3%	−34.1%
December 9, 2011	December 7, 2011	IRDM	Purchase	$28,625	+3.9%	−40.3%	−34.1%
December 9, 2011	December 7, 2011	IRDM	Purchase	$27,652	+3.9%	−40.3%	−34.1%
December 9, 2011	December 7, 2011	IRDM	Purchase	$24,753	+3.9%	−40.3%	−34.1%
December 8, 2011	December 6, 2011	IRDM	Purchase	$32,033	+7.5%	−36.0%	−32.8%
December 8, 2011	December 6, 2011	IRDM	Purchase	$31,230	+7.5%	−36.0%	−32.8%
December 8, 2011	December 6, 2011	IRDM	Purchase	$30,898	+7.5%	−36.0%	−32.8%
December 8, 2011	December 6, 2011	IRDM	Purchase	$26,297	+7.5%	−36.0%	−32.8%
December 8, 2011	December 6, 2011	IRDM	Purchase	$22,869	+7.5%	−36.0%	−32.8%
December 8, 2011	December 6, 2011	IRDM	Purchase	$22,153	+7.5%	−36.0%	−32.8%
December 7, 2011	December 5, 2011	IRDM	Purchase	$66,217	+13.1%	−30.9%	−33.7%
December 7, 2011	December 5, 2011	IRDM	Purchase	$38,777	+13.1%	−30.9%	−33.7%
December 7, 2011	December 5, 2011	IRDM	Purchase	$29,597	+13.1%	−30.9%	−33.7%
December 7, 2011	December 5, 2011	IRDM	Purchase	$29,494	+13.1%	−30.9%	−33.7%
December 7, 2011	December 5, 2011	IRDM	Purchase	$25,887	+13.1%	−30.9%	−33.7%
December 7, 2011	December 5, 2011	IRDM	Purchase	$22,917	+13.1%	−30.9%	−33.7%
December 7, 2011	December 5, 2011	IRDM	Purchase	$21,330	+13.1%	−30.9%	−33.7%

Open-market purchases and sales of at least $10,000 in companies we cover, from SEC Form 4 filings; sales made under a pre-set Rule 10b5-1 plan are not shown. “Not yet” means the window has not finished or the share price was under $5 at entry. These are the shares’ moves after each trade: they say nothing about why Baralonco Ltd traded and do not suggest the use of non-public information. How every insider compares · the insider trading backtest.