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错过股市上涨时机怎么办?

发布者: chrislau2001 | 发布时间: 2009-4-3 11:05| 查看数: 1294| 评论数: 2|

What To Do If You Blinked And Missed The Stock Rally







In January, I wrote about the 'stealth' bull market. It was so stealthy that it ended as soon as I gave it a name. Now we've experienced another bull market. I'm calling this one the 'Road Runner' rally. It went by so fast that it seemed a dizzying blur.

From March 9, when the Nasdaq Composite closed at 1269, to March 26, when it hit 1587, the index rose about 25%. The Dow Jones Industrial Average and the S&P 500-stock index each rose more than 20%, the traditional definition of a bull market. This remarkable move required just 17 days, the fastest, steepest rally since 1938, which makes it the fastest bull market in my lifetime.

Then, on Friday, the averages plunged. Last week I mentioned that astute investors following the Common Sense system should be getting ready to sell something. Little did I know that a few days later the Nasdaq would indeed hit a Common Sense selling threshold, which is a 25% gain from the most recent low, or 1586. That selling opportunity was brief, and I was en route to Boston and couldn't take advantage of the opportunity.

This is the second such brief opportunity this year, the last being in January. Then too, I wasn't in a position to take advantage of it. Like most people, I don't sit glued to a screen with stock quotes; I don't check the market every day let alone every hour; and my system isn't designed for split-second market timing. If that means missing a few signals in my system, so be it. I call these thresholds opportunities, not obligations, though obviously there's no point in having a system if you don't make a good-faith effort to follow it.

There's also something a little unsettling about markets that move at warp speed. We've experienced the dizziness of free fall; now we've been getting a taste of the equally fast ascent. It reminds me that there's a reason I don't seek out the thrill of theme-park roller coasters. A 318-point upward move in the Nasdaq in a matter of 17 days is clearly unsustainable, if not quite a mathematical impossibility. While I would have appreciated the opportunity to raise a little cash last week, Friday's drop actually came as something of a relief. Another rise would have seemed manic, merely setting investors up for another plunge.

Volatility remains high, which has yielded these recent buying and selling opportunities to those following the Common Sense system. Traders love this, since such swings yield higher profits, especially in the short term. I'm not a trader, and I'd be happy with fewer such opportunities. I can remember years that yielded just one or two. Nevertheless, this is the world that confronts us. We might as well take advantage of it.

The standard measure of volatility is the VIX, or Chicago Board Options Exchange Volatility Index. When the index is high, investors expect a high level of volatility. For years the index rarely breached 20. Though it has receded from its extreme highs of last fall, it's recently been trading in a band of 40-50. The index is misleadingly labeled the 'fear index'; since the volatility could as easily be on the upside, it could also be dubbed the 'greed' index.

Apart from a broad market indicator, I find the VIX is a useful guide to the premiums investors might expect to be priced into options. When the VIX is high, options are expensive. Just like stocks, I like to sell high and buy low, so when options prices are high, I tend to be a seller.

Last week I mentioned a strategy called 'covered calls,' which involves the simultaneous purchase of a stock and selling calls of the corresponding option. Given the recent selloff, that's proven to be a good strategy. While stock prices may have dropped, so have the corresponding options prices. When you write a call -- which conveys the right to buy shares at a specific price for a specific time period -- you receive the cash and your account statement reflects an offsetting debit, which declines as the option price drops. It's extinguished altogether if the option eventually expires worthless.

Over the years I've found it's also an effective strategy to sell calls on stocks I already own when the Nasdaq Composite hits one of my selling thresholds. That's especially true if the VIX is elevated and the rally is still in its early stages, both of which are true now. Selling calls gives investors immediate cash as well as the potential for further gains in return for capping those gains at the strike price.

Selling covered calls is a conservative strategy for reducing risk. I never recommend selling calls on stocks you don't own -- so-called naked calls -- since you might be forced to deliver those shares at very high prices. Selling a covered call caps your gains; selling naked calls exposes you to potentially unlimited losses.

Given the brevity of last week's selling opportunity, I haven't yet had a chance to put this approach into practice. But when I missed the selling threshold in January, I said I was confident another opportunity would present itself eventually. It did. I feel the same way now. And the next time the Nasdaq crosses 1587, maybe it will do so with some real conviction, and stay there for more than a few hours.

James B. Stewart, a columnist for SmartMoney magazine and SmartMoney.com, writes weekly about his personal investing strategy. Unlike Dow Jones reporters, he may have positions in the stocks he writes about. For his past columns, see: www.smartmoney.com/commonsense.

最新评论

chrislau2001 发表于 2009-4-3 11:06:12
1

月份时,我曾写过一篇文章谈“偷摸者”牛市。它是那么的悄无声息,我刚给它取了名字,一切就结束了。现在我们在经历着又一轮牛市。我要把这次的牛市称为“奔跑者”。它跑得太快了,让人只觉眼前一花,根本就来不及看清楚。

从3月9日收于1269点,到3月26日触及1587点,纳斯达克综合指数上涨约25%。道琼斯指数和标准普尔500指数涨幅均超过20%这一牛市的传统定义。这种惊人的飙升只用了17天,是1938年以来上涨速度最快、最剧烈的一次,也是我这辈子见过的上涨最快的牛市。

之后在上周五,各大股指纷纷下挫。上周我曾提到,遵循常识投资法的精明投资者应该准备卖出了。我当时丝毫不知道几天后纳斯达克综合指数会真的触及常识投资法的卖出下限,也就是比最近一次低点(1586点)上涨25%。这个卖出机会非常短暂,而当时我正在去波士顿的路上,所以没能把握住这个机会。

这是今年以来第二次昙花一现的机会,上次是在1月份。当时我也没能利用那个机会。和大部分人一样,我不会坐在那里,两眼片刻不离地盯着股票报价的屏幕;我不会每天跟踪市场行情,更不用说是每小时了;我的系统也不是为瞬间的市场机遇而设计的。如果这意味着我的系统中错失了一些信号,那就让它这样吧。我把这些买进卖出的下限称为机会,而不是义务,不过很显然,如果你不严格遵守的话,弄个系统就没有什么意义了。

上涨过快的市场也让人有点不安。我们经历过股市自由落体的眩晕,现在我们又尝到了以同样速度急速上升的滋味。这倒提醒了我:我不喜欢过山车的惊险刺激是有原因的。纳斯达克综合指数在短短的17天里涨了318点,这显然是无法持续的──就算是能在数学上行得通。我本来会重视上周小赚一笔的机会,但上周五的下挫实际上让我松了一口气。再次的上涨会看起来是疯狂的,只会把投资者高高抬起承受再次的暴跌。

股市震荡为遵循常识投资法的投资者带来最近的买进卖出机会,而现在震荡的可能性依然很高。交易员们乐见于此,因为这类大幅涨落会产生较高的利润,尤其是短期之内。我并非交易员,如果这样的机会少一些我会很高兴。我记得有很多年都只有一两次这样的机会。不过,我们现在面临的就是这么个世界。最好还是加以利用吧。

衡量波动性的标准是VIX,或芝加哥期权交易所市场波动率指数(Chicago Board Options Exchange Volatility Index)。当这一指数处于高点时,投资者就会预期高震荡。多年来,该指数极少突破20。虽然最近这个指数较去年秋季的极端高点有所下降,但最仍位于40-50区间。这一指数引人误解地被冠以“恐惧指数”之名;由于震荡也同样可能呈上升趋势,因此它也可以称为“贪婪”指数。

我发现,VIX波动指数除了充当广泛的市场指示器,还能很有效地帮助投资者预期期权定价中的溢价。当VIX波动指数高时,期权价格就会很高。跟股票一样,我喜欢高卖低买,因此在期权价格高的时候我往往会卖出。

上周我提到一种策略,就是在买进股票的同时卖出该股的看涨期权。考虑到最近的卖盘情况,这已经证明是个不错的策略。股票价格或许是下跌了,但相应的期权价格也同样下跌了。当你出售看涨期权时,你会获得现金,你的帐户报告也会有一项相应的借方项,但它会随期权价格下降而下降。如果期权最终一文不值地过期了,那你的借方项目也就整个归零了。

这么多年来我还发现,在纳斯达克综合指数达到我的卖出下限时,卖出我已经持有的股票的看涨期权也是一个行之有效的策略。尤其是当VIX波动指数上升以及股市反弹仍处于初期阶段的时候,现在这两种情况都出现了。出售看涨期权令投资者获得现金,同时还有可能在将来获利,代价是期权执行价为股票的收益封了顶。

出售保护性看涨期权是一种减轻风险的保守性策略。我从不推荐出售你并不持有的股票的看涨期权,即所谓的“裸期权”,因为你可能会被迫在价格极高的时候交付这些股票。出售看涨期权会影响你的收益;而出售裸期权则有可能让你遭受极大的损失。

由于上周的卖出机会十分短暂,我还没有机会将这种方法付诸实践。但当我今年1月错过卖出下限时,我曾说过我相信还会有另外的机会出现。事实的确如此。现在我也有这种感觉。等纳斯达克指数下一次超过1587点的时候,或许会体现一些真正的信心,更长地停留在那个水平之上,而不是像这次那样只停留几个小时。
Dorcas 发表于 2009-4-8 11:49:45
我不会玩股票的,没有那份心。
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